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1 #include <stdio.h>
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2 #include <ctype.h>
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3 #ifndef lint
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12
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4 static char ident[] = "@(#)$Id: lexstring.c,v 1.1.1.1 2005/04/18 14:46:08 kono Exp $";
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0
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5 #endif /* lint */
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6
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7 #define YYLERR yysvec
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8 #define YYTYPE int
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9 #define YYLMAX 256
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10
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11 struct yysvf {
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12 #ifndef hpux
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13 struct yywork *yystoff;
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14 #else /* hpux */
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15 int yystoff;
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16 #endif /* hpux */
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17 struct yysvf *yyother;
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18 int *yystops;
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19 };
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20
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21 struct yywork {
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22 YYTYPE verify;
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23 YYTYPE advance;
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24 };
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25
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26 extern int yyvstop[];
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27 extern struct yywork yycrank[];
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28 extern struct yysvf yysvec[];
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29 extern char yymatch[];
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30 extern char yyextra[];
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31
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32 #ifdef LEXDEBUG
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33 static int debug = 0;
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34 #endif /* LEXDEBUG */
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35
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36 #ifdef ONECASE
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37 static char case_map[] = {
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38 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
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39 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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40 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
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41 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
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42 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
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43 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
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44 60, 61, 62, 63, 64, 97, 98, 99, 100, 101,
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45 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
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46 112, 113, 114, 115, 116, 117, 118, 119, 120, 121,
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47 122, 91, 92, 93, 94, 95, 96, 97, 98, 99,
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48 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
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49 110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
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50 120, 121, 122, 123, 124, 125, 126, 127,
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51 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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52 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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53 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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54 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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55 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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56 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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57 0, 0, 0, 0, 0, 0, 0, 0
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58 };
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59 #endif /* ONECASE */
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60
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61 lex_string( strptr, start_cond)
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62 char **strptr;
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63 int start_cond;
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64 {
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65 register struct yysvf *state, **lsp;
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66 register struct yywork *tran;
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67 register int statenum;
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68 register int ch;
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69 register char *cp = *strptr;
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70 register int *found;
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71 struct yysvf *yylstate[YYLMAX];
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72
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73 /* start off machines */
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74 lsp = yylstate;
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75 statenum = 1 + start_cond;
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76 state = yysvec + statenum;
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77 for (;;){
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78 # ifdef LEXDEBUG
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79 if (debug) {
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80 fprintf(stderr,"%d ",statenum - 1);
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81 }
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82 # endif
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83 #ifndef hpux
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84 tran = state->yystoff;
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85 #else /* hpux */
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86 tran = &yycrank[state->yystoff];
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87 #endif /* hpux */
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88 if(tran == yycrank)
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89 /* may not be any transitions */
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90 if (state->yyother == 0 ||
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91 #ifndef hpux
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92 state->yyother->yystoff == yycrank)
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93 #else /* hpux */
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94 state->yyother->yystoff == 0)
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95 #endif /* hpux */
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96 break;
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97
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98 #ifdef ONECASE
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99 ch = case_map[*cp++];
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100 #else /* not ONECASE */
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101 ch = *cp++;
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102 #endif /* ONECASE */
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103 # ifdef LEXDEBUG
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104 if (debug) {
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105 fprintf(stderr,"(");
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106 allprint(ch);
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107 fprintf(stderr, ")");
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108 }
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109 # endif
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110 tryagain:
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111 #ifndef hpux
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112 if ( tran > yycrank){
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113 #else /* hpux */
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114 if ( (int)tran > (int)yycrank){
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115 #endif /* hpux */
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116 tran += ch;
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117 if (tran->verify == statenum){
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118 if ((statenum = tran->advance) == 0){
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119 /* error transitions */
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120 --cp;
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121 break;
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122 }
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123 state = statenum + yysvec;
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124 *lsp++ = state;
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125 goto contin;
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126 }
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127
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128 #ifndef hpux
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129 } else if(tran < yycrank) {
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130 #else /* hpux */
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131 } else if( (int)tran < (int)yycrank) {
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132 #endif /* hpux */
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133 tran = yycrank+(yycrank-tran) + ch;
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134 # ifdef LEXDEBUG
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135 if (debug) {
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136 fprintf(stderr," compressed");
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137 }
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138 # endif
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139 if (tran->verify == statenum){
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140 if ((statenum = tran->advance) == 0)
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141 /* error transitions */
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142 break;
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143
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144 state = statenum + yysvec;
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145 *lsp++ = state;
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146 goto contin;
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147 }
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148 tran += (yymatch[ch] - ch);
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149 # ifdef LEXDEBUG
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150 if (debug) {
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151 fprintf(stderr,"(fb ");
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152 allprint(yymatch[ch]);
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153 fprintf(stderr,")");
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154 }
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155 # endif
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156 if (tran->verify == statenum){
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157 if((statenum = tran->advance) == 0)
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158 /* error transition */
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159 break;
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160
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161 state = statenum + yysvec;
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162 *lsp++ = state;
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163 goto contin;
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164 }
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165 }
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166 if ((state = state->yyother) &&
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167 #ifndef hpux
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168 (tran = state->yystoff) != yycrank){
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169 #else /* hpux */
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170 (tran = &yycrank[state->yystoff]) != yycrank){
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171 #endif /* hpux */
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172 statenum = state - yysvec;
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173 # ifdef LEXDEBUG
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174 if (debug) {
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175 fprintf(stderr,"fb %d", statenum - 1);
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176 }
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177 # endif
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178 goto tryagain;
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179 } else
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180 break;
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181
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182 contin:
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183 # ifdef LEXDEBUG
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184 if (debug) {
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185 fprintf(stderr,">");
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186 }
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187 # endif
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188 ;
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189 }
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190 # ifdef LEXDEBUG
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191 if (debug) {
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192 fprintf(stderr,"\nStopped in state %d (",*(lsp-1)-yysvec-1);
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193 allprint(ch);
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194 fprintf(stderr, ") ");
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195 }
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196 # endif
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197 while (lsp-- > yylstate){
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198 if (*lsp != 0 && (found= (*lsp)->yystops) && *found > 0){
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199 if(yyextra[*found]){
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200 /* must backup */
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201 ch = -*found;
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202 do {
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203 while (*found && *found++ != ch)
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204 ;
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205 } while (lsp > yylstate &&
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206 (found = (*--lsp)->yystops));
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207 }
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208 # ifdef LEXDEBUG
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209 if (debug) {
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210 fprintf(stderr," Match \"");
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211 for ( cp = *strptr;
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212 cp <= ((*strptr)+(lsp-yylstate));
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213 cp++)
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214 allprint( *cp );
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215 fprintf(stderr,"\" action %d\n",*found);
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216 }
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217 # endif
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218 *strptr += (lsp - yylstate + 1);
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219 return(*found);
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220 }
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221 }
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222 /* the string didn't match anything - if we're looking at
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223 * eos, just return 0. Otherwise, bump the string pointer
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224 * and return -1.
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225 */
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226 # ifdef LEXDEBUG
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227 if (debug) {
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228 fprintf(stderr," No match\n");
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229 }
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230 #endif /* LEXDEBUG */
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231 if ( **strptr ) {
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232 (*strptr)++;
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233 return (-1);
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234 }
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235 return (0);
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236 }
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237
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238 #ifdef LEXDEBUG
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239 allprint(c)
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240 char c;
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241 {
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242 if ( c < 32 ) {
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243 putc( '^', stderr );
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244 c += 32;
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245 } else if ( c == 127 ) {
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246 putc( '^', stderr );
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247 c = '?';
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248 }
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249 putc( c, stderr );
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250 }
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251 #endif /* LEXDEBUG */
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