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annotate regexParser/regexParser.cc @ 300:3e78631a6222

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remove ragne list
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 03 Feb 2016 13:56:01 +0900
parents 2f3e7bba038e
children 1188debbef10
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include <stdlib.h>
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2 #include <stdio.h>
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3 #include <string.h>
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4 #include <ctype.h>
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5 #include "regexParser.h"
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6
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7 static NodePtr charClass(RegexInfoPtr);
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8 static void token(RegexInfoPtr);
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9 static NodePtr regexAtom(RegexInfoPtr);
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10
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11 /**
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12 * Create a node of regex parse tree.
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13 * tokenType
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14 * regexPosition(state)
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15 * stateTransitionTable
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16 */
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17 static
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18 NodePtr allocateNode() {
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19 NodePtr n = NEW(Node);
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20 n->cc = NULL;
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21 n->stateNum = 0;
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22 n->nextStateNum = 0;
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23 n->state = NULL;
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24 n->nextState = NULL;
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25 n->left = NULL;
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26 n->right = NULL;
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27 return n;
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28 }
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29
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30 NodePtr createNode(RegexInfoPtr ri,unsigned char type,CharClassPtr cc, NodePtr left, NodePtr right) {
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31 NodePtr n = allocateNode();
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32 n->tokenType = type;
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33 n->cc = cc;
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34 n->state = NULL;
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35 n->left = left;
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36 n->right = right;
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37 return n;
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38 }
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39
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40 CharClassPtr createCharClassWord(RegexInfoPtr ri) {
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41 CharClassPtr cc = NEW(CharClass);
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42 cc->type = 'a';
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43 cc->left = NULL;
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44 cc->right = NULL;
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45 cc->cond.w.word = ri->tokenValue;
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46 cc->cond.w.length = ri->ptr - ri->tokenValue;
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47 cc->cond.range.begin = cc->cond.range.end = *ri->tokenValue;
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48 return cc;
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49 }
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50
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51 /*
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52 cond.range.begin cond.range.end
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53 |----------------|
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54 1.b---e
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55 2.b------e
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56 3.b------------e
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57 4.b-----------------------e
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58 5.b----------------------------e
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59
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60 |----------------|
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61 6. b---------e
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62 7. b----------------e
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63 8. b---------------------e
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64
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65 |----------------|
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66 9. b-----e
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67 10. b--------e
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68 11. b-------------e
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69
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70 |----------------|
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71 12. b-----e
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72
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73 |----------------|
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74 13. b--e
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75
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76 */
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77 CharClassPtr insertCharClass(CharClassPtr cc, unsigned long begin, unsigned long end) {
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78 if (begin>end) {
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79 unsigned long tmp = begin; begin = end; end = tmp;
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80 }
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81 if (cc == NULL) {
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82 return createCharClassRange(begin,end,0,0,0);
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83 }
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84 if (end < cc->cond.range.begin ) { // 1
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85 if (cc->left) {
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86 cc->left = insertCharClass(cc->left,begin,end);
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87 } else {
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88 cc->left = createCharClassRange(begin,end,0,0,0);
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89 }
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90 return cc;
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91 } else if (end == cc->cond.range.begin ) { // 2
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92 cc->cond.range.begin = begin;
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93 return cc;
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94 } else if (end <= cc->cond.range.end) { // 3,4,6,7,9,10
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95 if (begin < cc->cond.range.begin) { // 3,4
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96 cc->cond.range.begin = begin;
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97 }
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98 return cc;
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99 } else if (begin > cc->cond.range.end ) { // 13
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100 if (cc->right) {
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101 cc->right = insertCharClass(cc->right,begin,end);
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102 } else {
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103 cc->right = createCharClassRange(begin,end,0,0,0);
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104 }
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105 return cc;
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106 }
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107 if (cc->right) {
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108 CharClassPtr right = cc->right;
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109 begin = cc->cond.range.begin;
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110 free(cc);
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111 return insertCharClass(right,begin,end);
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112 }
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113 if (begin >= cc->cond.range.begin && begin <= cc->cond.range.end) { // 12
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114 if (end > cc->cond.range.end) cc->cond.range.end = end; // 11,8
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115 } else if (begin < cc->cond.range.begin) { // 5
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116 cc->cond.range.begin = begin;
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117 cc->cond.range.end = end;
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118 } else {
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119 printf("insertCharClass Error : begin %lu end %lu cc->begin %lu cc->end %lu\n", begin,end,cc->cond.range.begin,cc->cond.range.end);
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120 }
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121 return cc;
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122 }
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123
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124 // <charClass> ::= '['<literal>'-'<literal>']'
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125 static
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126 NodePtr charClass(RegexInfoPtr ri) {
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127 CharClassPtr cc = NULL;
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128 NodePtr n = createNode(ri,'c',cc,0,0);
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129 unsigned char begin = *ri->ptr;
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130 unsigned char end = *ri->ptr;
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131
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132 for (ri->ptr++; *ri->ptr && *ri->ptr != ']'; ri->ptr++) {
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133 if (*ri->ptr == '-') {
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134 end = *(ri->ptr + 1);
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135 cc = insertCharClass(cc, begin, end);
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136 ri->ptr++;
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137 continue;
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138 } else {
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139 cc = insertCharClass(cc, begin, end);
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140 }
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141 if (ri->ptr[0] == 0 || ri->ptr[0] == ']') break;
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142 begin = *ri->ptr;
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 287
diff changeset
143 end = *ri->ptr;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 }
300
3e78631a6222 remove ragne list
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 287
diff changeset
145 n->cc = insertCharClass(cc, begin, end);
142
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
146 // TODO literal support
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
147 // merge rangeList here
135
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
148 if (*ri->ptr) ri->ptr++;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
149 token(ri);
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
152
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
153 // <literal> ::= [a-z][A-Z][0-9]
112
ec485345daf9 some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 108
diff changeset
154 static
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
155 NodePtr literal(RegexInfoPtr ri) {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
156 CharClassPtr cc = createCharClassWord(ri);
144
d8a4922eceae remove some errors (not working)
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 143
diff changeset
157 token(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
158 NodePtr n = createNode(ri,'a',cc,0,0);
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
161
133
ccc673449351 Look ahead '*'
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 132
diff changeset
162 static
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
163 void token(RegexInfoPtr ri) {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 while (ri->ptr[0] != '\0') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 if (ri->ptr[0] == '('){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 ri->tokenType = '(';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
168 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 } else if (ri->ptr[0] == ')') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
171 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 ri->tokenType = ')';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
173 ri->tokenValue = ri->ptr;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 return;
135
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
175 } else if (ri->ptr[0] == ']') {
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
176 ri->ptr++;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
177 ri->tokenType = ']';
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
178 ri->tokenValue = ri->ptr;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
179 return;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
180 } else if (ri->ptr[0] == '|'){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
181 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
182 ri->tokenType = '|';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
183 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
185 } else if (ri->ptr[0] == '*'){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
187 ri->tokenType = '*';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
188 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 } else if (ri->ptr[0] == '\\'){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
191 // need more proccesing
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 /*
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
193 \277
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 \0xa5
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 \[
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
196 \\
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
197 \utf-8 etc...
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
198 */
287
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
199 ri->ptr++;
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
200 ri->tokenType = 'a';
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
201 ri->tokenValue = ri->ptr;
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
202 ri->ptr++;
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
203 return;
142
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
204 } else if (ri->ptr[0] == '[') {
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
205 ri->ptr++;
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
206 ri->tokenType = 'c';
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
207 ri->tokenValue = ri->ptr;
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
208 return;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 } else {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 ri->tokenType = 'a';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
211 ri->tokenValue = ri->ptr;
287
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
212 // if (isalnum(ri->ptr[0])) {
122
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 121
diff changeset
213 ri->ptr++;
287
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
214 // }
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
215 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
216 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 }
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
218 ri->tokenType = 0;
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
219 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
220 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
221 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
222
130
7925e9abb078 add or flag
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 129
diff changeset
223 // <regexAtom> ::= <literal>|<charClass>|<group>
112
ec485345daf9 some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 108
diff changeset
224 static
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
225 NodePtr regexAtom(RegexInfoPtr ri) {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
226
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
227 NodePtr n = NULL;
124
masa
parents: 122
diff changeset
228 if (ri->tokenType == 'c') n = charClass(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
229 else if (ri->tokenType == 'a') n = literal(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
230 else if (ri->tokenType == '(') {
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
231 n = regex(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
232 if (ri->tokenType != ')') {
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
233 // error
287
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
234 fprintf(stderr,"unclosed ')' before %s \n", ri->ptr);
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 260
diff changeset
235 return createNode(ri,0,0,0,0);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
236 }
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
237 token(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
238 }
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
239 if (ri->tokenType == '*') {
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
240 n = createNode(ri,'*',0,n,0);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
241 token(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
242 }
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
244 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
245
133
ccc673449351 Look ahead '*'
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 132
diff changeset
246 // <regex> ::= <regexAtom> | <regexAtom>'*'<regex> | <regexAtom>'|'<regex> | <regexAtom><regexAtom>'*' | <regexAtom><regex>
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
247 NodePtr regex(RegexInfoPtr ri) {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
248 token(ri);
128
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 127
diff changeset
249 NodePtr n = regexAtom(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
250 while (ri->tokenType) {
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
251 if (ri->tokenType == '*') {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
252 n = createNode(ri,'*',0,n,0);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
253 token(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
254 return n;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
255 } else if (ri->tokenType == '|') {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
256 n = createNode(ri,'|',0,n,0);
133
ccc673449351 Look ahead '*'
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 132
diff changeset
257 NodePtr n1 = regex(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
258 n->right = n1;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
259 } else if (ri->tokenType == ')') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
260 return n;
255
61d4d466e64c fix Makefile
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 214
diff changeset
261 } else if (ri->tokenType == ']') {
61d4d466e64c fix Makefile
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 214
diff changeset
262 // error
61d4d466e64c fix Makefile
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 214
diff changeset
263 return n;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
264 } else {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
265 n = createNode(ri,'+',0,n,0);
180
d97bcab546e8 implement getNext
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 179
diff changeset
266 NodePtr n1 = regexAtom(ri);
d97bcab546e8 implement getNext
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 179
diff changeset
267 n->right = n1;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
268 }
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
269 }
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
270 return n;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
271 }