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annotate regexParser/regexParser.cc @ 174:b9e913030a47 pairPro

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allocate nodeNumber to character and cclist (not allocate nodenumber '+' '*' '|')
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Dec 2015 18:48:11 +0900
parents 3bf2c6d6d53e
children 3be0fbcd4b52
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 NodePtr regex(RegexInfoPtr);
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11
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12 /**
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13 * Create a node of regex parse tree.
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14 * tokenType
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15 * regexPosition(state)
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16 * stateTransitionTable
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17 */
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18
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19 static
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20 NodePtr allocateNode() {
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21 NodePtr n = NEW(Node);
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22 n->cc = NULL;
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23 n->left = NULL;
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24 n->right = NULL;
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25 return n;
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26 }
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27
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28 static
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29 NodePtr createNode(RegexInfoPtr ri,unsigned char type,CharClassPtr cc, NodePtr left, NodePtr right) {
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30 NodePtr n = allocateNode();
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31
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32 n->tokenType = type;
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33 n->cc = cc;
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34 n->left = left;
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35 n->right = right;
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36 if (n->tokenType == 'a' || n->tokenType == 'c') {
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37 n->nodeNumber = ri->nodeNumber;
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38 ri->nodeNumber++;
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39 } else {
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40 n->nodeNumber = 0;
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41 }
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42
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43 return n;
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44 }
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45
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46 CharClassPtr createCharClassRange(unsigned long begin, unsigned long end, CharClassPtr left, CharClassPtr right) {
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47 CharClassPtr cc = NEW(CharClass);
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48 cc->type = 'r';
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49 cc->cond.range.begin = begin;
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50 cc->cond.range.end = end;
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51 cc->left = left;
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52 cc->right = right;
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53 cc->nextState.bitContainer = 0;
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54 return cc;
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55 }
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56
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57 CharClassPtr createCharClassWord(RegexInfoPtr ri) {
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58 CharClassPtr cc = NEW(CharClass);
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59 cc->type = 'a';
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60 cc->cond.w.word = ri->tokenValue;
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61 cc->cond.w.length = ri->ptr - ri->tokenValue;
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62 cc->nextState.bitContainer = 0;
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63 return cc;
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64 }
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65
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66 /*
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67 cond.range.begin cond.range.end
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68 |----------------|
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69 1.b---e
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70 2.b------e
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71 3.b------------e
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72 4.b-----------------------e
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73 5.b----------------------------e
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74
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75 |----------------|
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76 6. b---------e
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77 7. b----------------e
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78 8. b---------------------e
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79
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80 |----------------|
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81 9. b-----e
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82 10. b--------e
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83 11. b-------------e
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84
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85 |----------------|
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86 12. b-----e
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87
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88 |----------------|
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89 13. b--e
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90
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91 */
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92 CharClassPtr insertCharClass(CharClassPtr cc, unsigned long begin, unsigned long end) {
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93
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94 if (end < cc->cond.range.begin ) { // 1
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95 if (cc->left) {
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96 cc->left = insertCharClass(cc->left,begin,end);
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97 } else {
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98 cc->left = createCharClassRange(begin,end,0,0);
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99 }
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100 return cc;
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101 } else if (end == cc->cond.range.begin ) { // 2
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102 cc->cond.range.begin = begin;
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103 return cc;
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104 } else if (end <= cc->cond.range.end) { // 3,4,6,7,9,10
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105 if (begin < cc->cond.range.begin) { // 3,4
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106 cc->cond.range.begin = begin;
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107 }
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108 return cc;
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109 } else if (begin > cc->cond.range.end ) { // 13
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110 if (cc->right) {
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111 cc->right = insertCharClass(cc->right,begin,end);
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112 } else {
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113 cc->right = createCharClassRange(begin,end,0,0);
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114 }
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115 return cc;
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116 }
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117 if (cc->right) {
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118 CharClassPtr right = cc->right;
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119 begin = cc->cond.range.begin;
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120 free(cc);
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121 return insertCharClass(right,begin,end);
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122 }
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123 if (begin >= cc->cond.range.begin && begin <= cc->cond.range.end) { // 12
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124 if (end > cc->cond.range.end) cc->cond.range.end = end; // 11,8
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125 } else if (begin < cc->cond.range.begin) { // 5
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126 cc->cond.range.begin = begin;
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127 cc->cond.range.end = end;
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128 } else {
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129 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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130 }
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131 return cc;
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132 }
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133
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134 // <charClass> ::= '['<literal>'-'<literal>']'
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135 static
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136 NodePtr charClass(RegexInfoPtr ri) {
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137 CharClassPtr cc = NEW(CharClass);
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138 NodePtr n = createNode(ri,'c',cc,0,0);
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139 cc->type = 'r';
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140 cc->nextState.bitContainer = 0;
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141 cc->left = NULL;
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142 cc->right = NULL;
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143 RangeListPtr rangeList = &cc->cond.range;
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144 rangeList->begin = *ri->ptr;
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145 rangeList->end = *ri->ptr;
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146 rangeList->next = NULL;
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147
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parents: 134
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148 for (ri->ptr++; *ri->ptr && *ri->ptr != ']'; ri->ptr++) {
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
149 if (*ri->ptr == '-') {
147
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
150 rangeList->end = *(ri->ptr + 1);
135
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
151 ri->ptr++;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
152 continue;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
153 }
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
154 if (ri->ptr[0] == 0 || ri->ptr[0] == ']') break;
126
639b0b437ebf remove error (do not work)
masa
parents: 125
diff changeset
155 rangeList->next = NEW(RangeList);
125
4d6ac69801ad fix createNode
Nozomi
parents: 122
diff changeset
156 rangeList = rangeList->next;
147
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
157 rangeList->begin = *ri->ptr;
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
158 rangeList->end = *ri->ptr;
125
4d6ac69801ad fix createNode
Nozomi
parents: 122
diff changeset
159 rangeList->next = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 }
147
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
161
150
a4940a8dd263 implement insertCharClass
masa
parents: 149
diff changeset
162 RangeListPtr r = cc->cond.range.next;
a4940a8dd263 implement insertCharClass
masa
parents: 149
diff changeset
163 cc->cond.range.next = 0;
a4940a8dd263 implement insertCharClass
masa
parents: 149
diff changeset
164 for (; r; r = r->next) {
147
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
165 cc = insertCharClass(cc, r->begin, r->end);
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
166 }
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
167
84d32375383a implement insertCharClass
masa
parents: 145
diff changeset
168 n->cc = cc;
142
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
169 // TODO literal support
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
170 // merge rangeList here
135
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
171 if (*ri->ptr) ri->ptr++;
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parents: 134
diff changeset
172 token(ri);
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
173 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
175
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
176 // <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
177 static
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 NodePtr literal(RegexInfoPtr ri) {
134
dbafc753078e fix concatination & selection & grouping
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parents: 133
diff changeset
179 CharClassPtr cc = createCharClassWord(ri);
144
d8a4922eceae remove some errors (not working)
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 143
diff changeset
180 token(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
181 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
182 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
184
133
ccc673449351 Look ahead '*'
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 132
diff changeset
185 static
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 void token(RegexInfoPtr ri) {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
187 while (ri->ptr[0] != '\0') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
188 if (ri->ptr[0] == '('){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 ri->tokenType = '(';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
191 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
193 } else if (ri->ptr[0] == ')') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 ri->tokenType = ')';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
196 ri->tokenValue = ri->ptr;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
197 return;
135
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
198 } else if (ri->ptr[0] == ']') {
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masa
parents: 134
diff changeset
199 ri->ptr++;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
200 ri->tokenType = ']';
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
201 ri->tokenValue = ri->ptr;
e1a262ec75f0 impl charclass
masa
parents: 134
diff changeset
202 return;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
203 } else if (ri->ptr[0] == '|'){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
204 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
205 ri->tokenType = '|';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
206 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
208 } else if (ri->ptr[0] == '*'){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 ri->tokenType = '*';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
211 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
212 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
213 } else if (ri->ptr[0] == '\\'){
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
214 // need more proccesing
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
215 /*
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
216 \277
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 \0xa5
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
218 \[
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
219 \\
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
220 \utf-8 etc...
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
221 */
142
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
222 } else if (ri->ptr[0] == '[') {
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
223 ri->ptr++;
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
224 ri->tokenType = 'c';
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
225 ri->tokenValue = ri->ptr;
de0f332d560c insert charClassMerge function
masa
parents: 136
diff changeset
226 return;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
227 } else {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
228 ri->tokenType = 'a';
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 116
diff changeset
229 ri->tokenValue = ri->ptr;
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
230 if (isalnum(ri->ptr[0])) {
122
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 121
diff changeset
231 ri->ptr++;
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 121
diff changeset
232 }
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
233 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
234 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
235 }
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
236 ri->tokenType = 0;
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
237 ri->tokenValue = NULL;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
238 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
239 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
240
130
7925e9abb078 add or flag
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 129
diff changeset
241 // <regexAtom> ::= <literal>|<charClass>|<group>
112
ec485345daf9 some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 108
diff changeset
242 static
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 NodePtr regexAtom(RegexInfoPtr ri) {
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 NodePtr n = NULL;
124
masa
parents: 122
diff changeset
246 if (ri->tokenType == 'c') n = charClass(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
247 else if (ri->tokenType == 'a') n = literal(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
248 else if (ri->tokenType == '(') {
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
249 n = regex(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
250 if (ri->tokenType != ')') {
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
251 // error
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
252 }
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
253 token(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
254 }
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
255 if (ri->tokenType == '*') {
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
256 n = createNode(ri,'*',0,n,0);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
257 token(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
258 }
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
259
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
260 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
261 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
262
133
ccc673449351 Look ahead '*'
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 132
diff changeset
263 // <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
264 NodePtr regex(RegexInfoPtr ri) {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
265 token(ri);
128
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 127
diff changeset
266 NodePtr n = regexAtom(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
267 while (ri->tokenType) {
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
268 if (ri->tokenType == '*') {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
269 n = createNode(ri,'*',0,n,0);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
270 token(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
271 return n;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
272 } else if (ri->tokenType == '|') {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
273 n = createNode(ri,'|',0,n,0);
133
ccc673449351 Look ahead '*'
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 132
diff changeset
274 NodePtr n1 = regex(ri);
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
275 n->right = n1;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
276 } else if (ri->tokenType == ')') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
277 return n;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
278 } else {
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
279 n = createNode(ri,'+',0,n,0);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
280 NodePtr n1 = regexAtom(ri);
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
281 n->right = n1;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
282 }
134
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
283 }
dbafc753078e fix concatination & selection & grouping
masa
parents: 133
diff changeset
284 return n;
82
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
285 }