Mercurial
annotate third_party/luajit/src/lj_lex.c @ 210:0abed117e623
Updated manifest color.
| author | MrJuneJune <me@mrjunejune.com> |
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| date | Sun, 15 Feb 2026 15:47:38 -0800 |
| parents | 94705b5986b3 |
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| rev | line source |
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1 /* |
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2 ** Lexical analyzer. |
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h |
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4 ** |
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5 ** Major portions taken verbatim or adapted from the Lua interpreter. |
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6 ** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h |
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7 */ |
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8 |
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9 #define lj_lex_c |
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10 #define LUA_CORE |
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11 |
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12 #include "lj_obj.h" |
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13 #include "lj_gc.h" |
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14 #include "lj_err.h" |
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15 #include "lj_buf.h" |
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16 #include "lj_str.h" |
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17 #if LJ_HASFFI |
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18 #include "lj_tab.h" |
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19 #include "lj_ctype.h" |
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20 #include "lj_cdata.h" |
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21 #include "lualib.h" |
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22 #endif |
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23 #include "lj_state.h" |
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24 #include "lj_lex.h" |
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25 #include "lj_parse.h" |
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26 #include "lj_char.h" |
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27 #include "lj_strscan.h" |
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28 #include "lj_strfmt.h" |
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29 |
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30 /* Lua lexer token names. */ |
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31 static const char *const tokennames[] = { |
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32 #define TKSTR1(name) #name, |
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33 #define TKSTR2(name, sym) #sym, |
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34 TKDEF(TKSTR1, TKSTR2) |
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35 #undef TKSTR1 |
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36 #undef TKSTR2 |
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37 NULL |
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38 }; |
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39 |
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40 /* -- Buffer handling ----------------------------------------------------- */ |
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41 |
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42 #define LEX_EOF (-1) |
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43 #define lex_iseol(ls) (ls->c == '\n' || ls->c == '\r') |
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44 |
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45 /* Get more input from reader. */ |
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46 static LJ_NOINLINE LexChar lex_more(LexState *ls) |
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47 { |
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48 size_t sz; |
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49 const char *p = ls->rfunc(ls->L, ls->rdata, &sz); |
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50 if (p == NULL || sz == 0) return LEX_EOF; |
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51 if (sz >= LJ_MAX_BUF) { |
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52 if (sz != ~(size_t)0) lj_err_mem(ls->L); |
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53 sz = ~(uintptr_t)0 - (uintptr_t)p; |
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54 if (sz >= LJ_MAX_BUF) sz = LJ_MAX_BUF-1; |
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55 ls->endmark = 1; |
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56 } |
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57 ls->pe = p + sz; |
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58 ls->p = p + 1; |
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59 return (LexChar)(uint8_t)p[0]; |
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60 } |
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61 |
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62 /* Get next character. */ |
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63 static LJ_AINLINE LexChar lex_next(LexState *ls) |
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64 { |
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65 return (ls->c = ls->p < ls->pe ? (LexChar)(uint8_t)*ls->p++ : lex_more(ls)); |
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66 } |
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67 |
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68 /* Save character. */ |
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69 static LJ_AINLINE void lex_save(LexState *ls, LexChar c) |
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70 { |
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71 lj_buf_putb(&ls->sb, c); |
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72 } |
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73 |
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74 /* Save previous character and get next character. */ |
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75 static LJ_AINLINE LexChar lex_savenext(LexState *ls) |
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76 { |
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77 lex_save(ls, ls->c); |
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78 return lex_next(ls); |
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79 } |
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80 |
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81 /* Skip line break. Handles "\n", "\r", "\r\n" or "\n\r". */ |
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82 static void lex_newline(LexState *ls) |
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83 { |
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84 LexChar old = ls->c; |
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85 lj_assertLS(lex_iseol(ls), "bad usage"); |
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86 lex_next(ls); /* Skip "\n" or "\r". */ |
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87 if (lex_iseol(ls) && ls->c != old) lex_next(ls); /* Skip "\n\r" or "\r\n". */ |
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88 if (++ls->linenumber >= LJ_MAX_LINE) |
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89 lj_lex_error(ls, ls->tok, LJ_ERR_XLINES); |
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90 } |
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91 |
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92 /* -- Scanner for terminals ----------------------------------------------- */ |
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93 |
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94 /* Parse a number literal. */ |
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95 static void lex_number(LexState *ls, TValue *tv) |
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96 { |
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97 StrScanFmt fmt; |
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98 LexChar c, xp = 'e'; |
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99 lj_assertLS(lj_char_isdigit(ls->c), "bad usage"); |
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100 if ((c = ls->c) == '0' && (lex_savenext(ls) | 0x20) == 'x') |
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101 xp = 'p'; |
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102 while (lj_char_isident(ls->c) || ls->c == '.' || |
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103 ((ls->c == '-' || ls->c == '+') && (c | 0x20) == xp)) { |
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104 c = ls->c; |
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105 lex_savenext(ls); |
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106 } |
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107 lex_save(ls, '\0'); |
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108 fmt = lj_strscan_scan((const uint8_t *)ls->sb.b, sbuflen(&ls->sb)-1, tv, |
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109 (LJ_DUALNUM ? STRSCAN_OPT_TOINT : STRSCAN_OPT_TONUM) | |
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
110 (LJ_HASFFI ? (STRSCAN_OPT_LL|STRSCAN_OPT_IMAG) : 0)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
111 if (LJ_DUALNUM && fmt == STRSCAN_INT) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
112 setitype(tv, LJ_TISNUM); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
113 } else if (fmt == STRSCAN_NUM) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
114 /* Already in correct format. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
115 #if LJ_HASFFI |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
116 } else if (fmt != STRSCAN_ERROR) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
117 lua_State *L = ls->L; |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
118 GCcdata *cd; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
119 lj_assertLS(fmt == STRSCAN_I64 || fmt == STRSCAN_U64 || fmt == STRSCAN_IMAG, |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
120 "unexpected number format %d", fmt); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
121 ctype_loadffi(L); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
122 if (fmt == STRSCAN_IMAG) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
123 cd = lj_cdata_new_(L, CTID_COMPLEX_DOUBLE, 2*sizeof(double)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
124 ((double *)cdataptr(cd))[0] = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
125 ((double *)cdataptr(cd))[1] = numV(tv); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
126 } else { |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
127 cd = lj_cdata_new_(L, fmt==STRSCAN_I64 ? CTID_INT64 : CTID_UINT64, 8); |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
128 *(uint64_t *)cdataptr(cd) = tv->u64; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
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|
129 } |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
130 lj_parse_keepcdata(ls, tv, cd); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
131 #endif |
|
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MrJuneJune <me@mrjunejune.com>
parents:
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|
132 } else { |
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MrJuneJune <me@mrjunejune.com>
parents:
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|
133 lj_assertLS(fmt == STRSCAN_ERROR, |
|
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MrJuneJune <me@mrjunejune.com>
parents:
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|
134 "unexpected number format %d", fmt); |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
135 lj_lex_error(ls, TK_number, LJ_ERR_XNUMBER); |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
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|
136 } |
|
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MrJuneJune <me@mrjunejune.com>
parents:
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|
137 } |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
138 |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
139 /* Skip equal signs for "[=...=[" and "]=...=]" and return their count. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
140 static int lex_skipeq(LexState *ls) |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
141 { |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
142 int count = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
143 LexChar s = ls->c; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
144 lj_assertLS(s == '[' || s == ']', "bad usage"); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
145 while (lex_savenext(ls) == '=' && count < 0x20000000) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
146 count++; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
147 return (ls->c == s) ? count : (-count) - 1; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
148 } |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
149 |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
150 /* Parse a long string or long comment (tv set to NULL). */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
151 static void lex_longstring(LexState *ls, TValue *tv, int sep) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
152 { |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
153 lex_savenext(ls); /* Skip second '['. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
154 if (lex_iseol(ls)) /* Skip initial newline. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
155 lex_newline(ls); |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
156 for (;;) { |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
157 switch (ls->c) { |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
158 case LEX_EOF: |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
159 lj_lex_error(ls, TK_eof, tv ? LJ_ERR_XLSTR : LJ_ERR_XLCOM); |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
160 break; |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
161 case ']': |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
162 if (lex_skipeq(ls) == sep) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
163 lex_savenext(ls); /* Skip second ']'. */ |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
164 goto endloop; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
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|
165 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
166 break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
167 case '\n': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
168 case '\r': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
169 lex_save(ls, '\n'); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
170 lex_newline(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
171 if (!tv) lj_buf_reset(&ls->sb); /* Don't waste space for comments. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
172 break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
173 default: |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
174 lex_savenext(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
175 break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
176 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
177 } endloop: |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
178 if (tv) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
179 GCstr *str = lj_parse_keepstr(ls, ls->sb.b + (2 + (MSize)sep), |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
180 sbuflen(&ls->sb) - 2*(2 + (MSize)sep)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
181 setstrV(ls->L, tv, str); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
182 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
183 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
184 |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
185 /* Parse a string. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
186 static void lex_string(LexState *ls, TValue *tv) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
changeset
|
187 { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
188 LexChar delim = ls->c; /* Delimiter is '\'' or '"'. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
189 lex_savenext(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
190 while (ls->c != delim) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
191 switch (ls->c) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
192 case LEX_EOF: |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
193 lj_lex_error(ls, TK_eof, LJ_ERR_XSTR); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
194 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
195 case '\n': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
196 case '\r': |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
197 lj_lex_error(ls, TK_string, LJ_ERR_XSTR); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
198 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
199 case '\\': { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
200 LexChar c = lex_next(ls); /* Skip the '\\'. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
201 switch (c) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
202 case 'a': c = '\a'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
203 case 'b': c = '\b'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
204 case 'f': c = '\f'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
205 case 'n': c = '\n'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
206 case 'r': c = '\r'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
207 case 't': c = '\t'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
208 case 'v': c = '\v'; break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
209 case 'x': /* Hexadecimal escape '\xXX'. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
210 c = (lex_next(ls) & 15u) << 4; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
211 if (!lj_char_isdigit(ls->c)) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
212 if (!lj_char_isxdigit(ls->c)) goto err_xesc; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
213 c += 9 << 4; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
214 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
215 c += (lex_next(ls) & 15u); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
216 if (!lj_char_isdigit(ls->c)) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
217 if (!lj_char_isxdigit(ls->c)) goto err_xesc; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
218 c += 9; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
219 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
220 break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
221 case 'u': /* Unicode escape '\u{XX...}'. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
222 if (lex_next(ls) != '{') goto err_xesc; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
223 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
224 c = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
225 do { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
226 c = (c << 4) | (ls->c & 15u); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
227 if (!lj_char_isdigit(ls->c)) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
228 if (!lj_char_isxdigit(ls->c)) goto err_xesc; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
229 c += 9; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
230 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
231 if (c >= 0x110000) goto err_xesc; /* Out of Unicode range. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
232 } while (lex_next(ls) != '}'); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
233 if (c < 0x800) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
234 if (c < 0x80) break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
235 lex_save(ls, 0xc0 | (c >> 6)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
236 } else { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
237 if (c >= 0x10000) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
238 lex_save(ls, 0xf0 | (c >> 18)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
239 lex_save(ls, 0x80 | ((c >> 12) & 0x3f)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
240 } else { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
241 if (c >= 0xd800 && c < 0xe000) goto err_xesc; /* No surrogates. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
242 lex_save(ls, 0xe0 | (c >> 12)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
243 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
244 lex_save(ls, 0x80 | ((c >> 6) & 0x3f)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
245 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
246 c = 0x80 | (c & 0x3f); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
247 break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
248 case 'z': /* Skip whitespace. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
249 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
250 while (lj_char_isspace(ls->c)) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
251 if (lex_iseol(ls)) lex_newline(ls); else lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
252 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
253 case '\n': case '\r': lex_save(ls, '\n'); lex_newline(ls); continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
254 case '\\': case '\"': case '\'': break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
255 case LEX_EOF: continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
256 default: |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
257 if (!lj_char_isdigit(c)) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
258 goto err_xesc; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
259 c -= '0'; /* Decimal escape '\ddd'. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
260 if (lj_char_isdigit(lex_next(ls))) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
261 c = c*10 + (ls->c - '0'); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
262 if (lj_char_isdigit(lex_next(ls))) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
263 c = c*10 + (ls->c - '0'); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
264 if (c > 255) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
265 err_xesc: |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
266 lj_lex_error(ls, TK_string, LJ_ERR_XESC); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
267 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
268 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
269 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
270 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
271 lex_save(ls, c); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
272 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
273 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
274 lex_save(ls, c); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
275 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
276 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
277 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
278 default: |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
279 lex_savenext(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
280 break; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
281 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
282 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
283 lex_savenext(ls); /* Skip trailing delimiter. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
284 setstrV(ls->L, tv, |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
285 lj_parse_keepstr(ls, ls->sb.b+1, sbuflen(&ls->sb)-2)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
286 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
287 |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
288 /* -- Main lexical scanner ------------------------------------------------ */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
289 |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
290 /* Get next lexical token. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
291 static LexToken lex_scan(LexState *ls, TValue *tv) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
292 { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
293 lj_buf_reset(&ls->sb); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
294 for (;;) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
295 if (lj_char_isident(ls->c)) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
296 GCstr *s; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
297 if (lj_char_isdigit(ls->c)) { /* Numeric literal. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
298 lex_number(ls, tv); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
299 return TK_number; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
300 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
301 /* Identifier or reserved word. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
302 do { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
303 lex_savenext(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
304 } while (lj_char_isident(ls->c)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
305 s = lj_parse_keepstr(ls, ls->sb.b, sbuflen(&ls->sb)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
306 setstrV(ls->L, tv, s); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
307 if (s->reserved > 0) /* Reserved word? */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
308 return TK_OFS + s->reserved; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
309 return TK_name; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
310 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
311 switch (ls->c) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
312 case '\n': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
313 case '\r': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
314 lex_newline(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
315 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
316 case ' ': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
317 case '\t': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
318 case '\v': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
319 case '\f': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
320 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
321 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
322 case '-': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
323 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
324 if (ls->c != '-') return '-'; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
325 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
326 if (ls->c == '[') { /* Long comment "--[=*[...]=*]". */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
327 int sep = lex_skipeq(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
328 lj_buf_reset(&ls->sb); /* `lex_skipeq' may dirty the buffer */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
329 if (sep >= 0) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
330 lex_longstring(ls, NULL, sep); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
331 lj_buf_reset(&ls->sb); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
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|
332 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
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|
333 } |
|
94705b5986b3
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parents:
diff
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|
334 } |
|
94705b5986b3
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parents:
diff
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|
335 /* Short comment "--.*\n". */ |
|
94705b5986b3
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parents:
diff
changeset
|
336 while (!lex_iseol(ls) && ls->c != LEX_EOF) |
|
94705b5986b3
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parents:
diff
changeset
|
337 lex_next(ls); |
|
94705b5986b3
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parents:
diff
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|
338 continue; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
changeset
|
339 case '[': { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
340 int sep = lex_skipeq(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
changeset
|
341 if (sep >= 0) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
changeset
|
342 lex_longstring(ls, tv, sep); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
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|
343 return TK_string; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
changeset
|
344 } else if (sep == -1) { |
|
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[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
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|
345 return '['; |
|
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parents:
diff
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|
346 } else { |
|
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[ThirdParty] Added WRK and luajit for load testing.
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parents:
diff
changeset
|
347 lj_lex_error(ls, TK_string, LJ_ERR_XLDELIM); |
|
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parents:
diff
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|
348 continue; |
|
94705b5986b3
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parents:
diff
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|
349 } |
|
94705b5986b3
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parents:
diff
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|
350 } |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
351 case '=': |
|
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parents:
diff
changeset
|
352 lex_next(ls); |
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
353 if (ls->c != '=') return '='; else { lex_next(ls); return TK_eq; } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
354 case '<': |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
355 lex_next(ls); |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
356 if (ls->c != '=') return '<'; else { lex_next(ls); return TK_le; } |
|
94705b5986b3
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parents:
diff
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|
357 case '>': |
|
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parents:
diff
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|
358 lex_next(ls); |
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
359 if (ls->c != '=') return '>'; else { lex_next(ls); return TK_ge; } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
360 case '~': |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
361 lex_next(ls); |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
362 if (ls->c != '=') return '~'; else { lex_next(ls); return TK_ne; } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
363 case ':': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
364 lex_next(ls); |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
365 if (ls->c != ':') return ':'; else { lex_next(ls); return TK_label; } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
366 case '"': |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
367 case '\'': |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
368 lex_string(ls, tv); |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
369 return TK_string; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
370 case '.': |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
371 if (lex_savenext(ls) == '.') { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
372 lex_next(ls); |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
373 if (ls->c == '.') { |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
374 lex_next(ls); |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
375 return TK_dots; /* ... */ |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
376 } |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
377 return TK_concat; /* .. */ |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
378 } else if (!lj_char_isdigit(ls->c)) { |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
379 return '.'; |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
380 } else { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
381 lex_number(ls, tv); |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
382 return TK_number; |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
383 } |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
384 case LEX_EOF: |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
385 return TK_eof; |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
386 default: { |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
387 LexChar c = ls->c; |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
388 lex_next(ls); |
|
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parents:
diff
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|
389 return c; /* Single-char tokens (+ - / ...). */ |
|
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[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
390 } |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
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|
391 } |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
392 } |
|
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
393 } |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
394 |
|
94705b5986b3
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MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
395 /* -- Lexer API ----------------------------------------------------------- */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
396 |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
397 /* Setup lexer state. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
398 int lj_lex_setup(lua_State *L, LexState *ls) |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
399 { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
400 int header = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
401 ls->L = L; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
402 ls->fs = NULL; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
403 ls->pe = ls->p = NULL; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
404 ls->vstack = NULL; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
405 ls->sizevstack = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
406 ls->vtop = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
407 ls->bcstack = NULL; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
408 ls->sizebcstack = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
409 ls->tok = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
410 ls->lookahead = TK_eof; /* No look-ahead token. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
411 ls->linenumber = 1; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
412 ls->lastline = 1; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
413 ls->endmark = 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
414 lex_next(ls); /* Read-ahead first char. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
415 if (ls->c == 0xef && ls->p + 2 <= ls->pe && (uint8_t)ls->p[0] == 0xbb && |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
416 (uint8_t)ls->p[1] == 0xbf) { /* Skip UTF-8 BOM (if buffered). */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
417 ls->p += 2; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
418 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
419 header = 1; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
420 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
421 if (ls->c == '#') { /* Skip POSIX #! header line. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
422 do { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
423 lex_next(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
424 if (ls->c == LEX_EOF) return 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
425 } while (!lex_iseol(ls)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
426 lex_newline(ls); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
427 header = 1; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
428 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
429 if (ls->c == LUA_SIGNATURE[0]) { /* Bytecode dump. */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
430 if (header) { |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
431 /* |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
432 ** Loading bytecode with an extra header is disabled for security |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
433 ** reasons. This may circumvent the usual check for bytecode vs. |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
434 ** Lua code by looking at the first char. Since this is a potential |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
435 ** security violation no attempt is made to echo the chunkname either. |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
436 */ |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
437 setstrV(L, L->top++, lj_err_str(L, LJ_ERR_BCBAD)); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
438 lj_err_throw(L, LUA_ERRSYNTAX); |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
439 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
440 return 1; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
441 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
442 return 0; |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
443 } |
|
94705b5986b3
[ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff
changeset
|
444 |
|
94705b5986b3
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445 /* Cleanup lexer state. */ |
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446 void lj_lex_cleanup(lua_State *L, LexState *ls) |
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447 { |
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448 global_State *g = G(L); |
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449 lj_mem_freevec(g, ls->bcstack, ls->sizebcstack, BCInsLine); |
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450 lj_mem_freevec(g, ls->vstack, ls->sizevstack, VarInfo); |
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451 lj_buf_free(g, &ls->sb); |
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452 } |
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453 |
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454 /* Return next lexical token. */ |
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455 void lj_lex_next(LexState *ls) |
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456 { |
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457 ls->lastline = ls->linenumber; |
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458 if (LJ_LIKELY(ls->lookahead == TK_eof)) { /* No lookahead token? */ |
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459 ls->tok = lex_scan(ls, &ls->tokval); /* Get next token. */ |
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460 } else { /* Otherwise return lookahead token. */ |
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461 ls->tok = ls->lookahead; |
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462 ls->lookahead = TK_eof; |
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463 ls->tokval = ls->lookaheadval; |
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464 } |
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465 } |
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466 |
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467 /* Look ahead for the next token. */ |
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468 LexToken lj_lex_lookahead(LexState *ls) |
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469 { |
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470 lj_assertLS(ls->lookahead == TK_eof, "double lookahead"); |
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471 ls->lookahead = lex_scan(ls, &ls->lookaheadval); |
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472 return ls->lookahead; |
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473 } |
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474 |
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475 /* Convert token to string. */ |
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476 const char *lj_lex_token2str(LexState *ls, LexToken tok) |
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477 { |
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478 if (tok > TK_OFS) |
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479 return tokennames[tok-TK_OFS-1]; |
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480 else if (!lj_char_iscntrl(tok)) |
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481 return lj_strfmt_pushf(ls->L, "%c", tok); |
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482 else |
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483 return lj_strfmt_pushf(ls->L, "char(%d)", tok); |
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484 } |
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485 |
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486 /* Lexer error. */ |
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487 void lj_lex_error(LexState *ls, LexToken tok, ErrMsg em, ...) |
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488 { |
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489 const char *tokstr; |
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490 va_list argp; |
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491 if (tok == 0) { |
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492 tokstr = NULL; |
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493 } else if (tok == TK_name || tok == TK_string || tok == TK_number) { |
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494 lex_save(ls, '\0'); |
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495 tokstr = ls->sb.b; |
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496 } else { |
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497 tokstr = lj_lex_token2str(ls, tok); |
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498 } |
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499 va_start(argp, em); |
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500 lj_err_lex(ls->L, ls->chunkname, tokstr, ls->linenumber, em, argp); |
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501 va_end(argp); |
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502 } |
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503 |
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504 /* Initialize strings for reserved words. */ |
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505 void lj_lex_init(lua_State *L) |
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506 { |
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507 uint32_t i; |
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508 for (i = 0; i < TK_RESERVED; i++) { |
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509 GCstr *s = lj_str_newz(L, tokennames[i]); |
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510 fixstring(s); /* Reserved words are never collected. */ |
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511 s->reserved = (uint8_t)(i+1); |
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512 } |
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513 } |
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514 |