Mercurial > hg > Applications > Grep
annotate c/regexParser/regexParser.cc @ 126:639b0b437ebf pairPro
remove error (do not work)
author | masa |
---|---|
date | Tue, 01 Dec 2015 21:42:05 +0900 |
parents | 4d6ac69801ad |
children | b061cd8205cc |
rev | line source |
---|---|
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
1 #include <stdlib.h> |
89
50a146c05192
add NodeNumber in Regex Parser tree
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
87
diff
changeset
|
2 #include <stdio.h> |
122 | 3 #include <string.h> |
4 #include <ctype.h> | |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
5 #include "regexParser.h" |
115
ca30f8334741
rename createRegexParser.cc to regexParser.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
112
diff
changeset
|
6 #include "error.h" |
ca30f8334741
rename createRegexParser.cc to regexParser.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
112
diff
changeset
|
7 |
118 | 8 static NodePtr allocateNode(); |
126 | 9 static NodePtr createNode(RegexInfoPtr,unsigned char,NodePtr,NodePtr); |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
10 static NodePtr charClass(RegexInfoPtr); |
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
11 static NodePtr group(RegexInfoPtr); |
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
12 static void token(RegexInfoPtr); |
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
13 static NodePtr regexAtom(RegexInfoPtr); |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
14 NodePtr regex(RegexInfoPtr); |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
15 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
16 /** |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
17 * Create a node of regex parse tree. |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
18 * tokenType |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
19 * regexPosition(state) |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
20 * stateTransitionTable |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
21 */ |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
22 |
118 | 23 static |
116
66c633575b53
remove error and warning
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
115
diff
changeset
|
24 NodePtr allocateNode() { |
66c633575b53
remove error and warning
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
115
diff
changeset
|
25 NodePtr n = (NodePtr)malloc(sizeof(node)); |
125 | 26 n->cc = NULL; |
27 n->left = NULL; | |
28 n->right = NULL; | |
116
66c633575b53
remove error and warning
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
115
diff
changeset
|
29 return n; |
66c633575b53
remove error and warning
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
115
diff
changeset
|
30 } |
66c633575b53
remove error and warning
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
115
diff
changeset
|
31 |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
32 static |
126 | 33 CharClassPtr createCharClassWord(RegexInfoPtr ri) { |
125 | 34 CharClassPtr cc = NEW(CharClass); |
35 cc->type = 'a'; | |
36 cc->cond = NEW(Condition); | |
37 cc->cond->w = NEW(Word); | |
38 cc->cond->w->word = ri->tokenValue; | |
39 cc->cond->w->length = ri->ptr - ri->tokenValue; | |
126 | 40 |
41 return cc; | |
125 | 42 } |
43 | |
44 static | |
45 NodePtr createNode(RegexInfoPtr ri,unsigned char type, NodePtr left, NodePtr right) { | |
116
66c633575b53
remove error and warning
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
115
diff
changeset
|
46 NodePtr n = allocateNode(); |
108
70069d4647a0
implement malloc error checking
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
104
diff
changeset
|
47 |
125 | 48 n->tokenType = type; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
49 n->left = left; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
50 n->right = right; |
120
5d29b6a1b50f
include Word in Node
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
118
diff
changeset
|
51 n->nodeNumber = ri->nodeNumber; |
5d29b6a1b50f
include Word in Node
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
118
diff
changeset
|
52 ri->nodeNumber++; |
89
50a146c05192
add NodeNumber in Regex Parser tree
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
87
diff
changeset
|
53 |
125 | 54 if (type == 'a') { |
55 n->cc = createCharClassWord(ri); | |
89
50a146c05192
add NodeNumber in Regex Parser tree
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
87
diff
changeset
|
56 } |
125 | 57 |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
58 return n; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
59 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
60 |
125 | 61 |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
62 // <charClass> ::= '['<literal>'-'<literal>']' |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
63 static |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
64 NodePtr charClass(RegexInfoPtr ri) { |
122 | 65 NodePtr n = allocateNode(); |
66 | |
125 | 67 n->tokenType = 'c'; |
122 | 68 n->nodeNumber = ri->nodeNumber; |
69 ri->nodeNumber++; | |
125 | 70 |
71 CharClassPtr cc = NEW(CharClass); | |
126 | 72 cc->type = 'r'; |
125 | 73 cc->cond = NEW(Condition); |
126 | 74 cc->cond->range = NEW(RangeList); |
75 cc->cond->range->begin = ri->ptr; | |
76 cc->cond->range->end = ri->ptr + 1; | |
77 cc->cond->range->next = NULL; | |
122 | 78 |
79 int i = 0; | |
80 | |
126 | 81 RangeListPtr rangeList = cc->cond->range; |
125 | 82 |
122 | 83 while (ri->ptr[i] != ']') { |
125 | 84 if (ri->ptr[i] == '-') i++; |
85 | |
86 rangeList->end = ri->ptr + i; | |
126 | 87 rangeList->next = NEW(RangeList); |
125 | 88 rangeList = rangeList->next; |
89 rangeList->begin = ri->ptr+i+1; | |
90 rangeList->next = NULL; | |
122 | 91 i++; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
92 } |
122 | 93 |
126 | 94 rangeList->end = ri->ptr + i - 1; |
122 | 95 |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
96 return n; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
97 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
98 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
99 // <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
|
100 static |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
101 NodePtr literal(RegexInfoPtr ri) { |
126 | 102 NodePtr n = createNode(ri,'a',0,0); |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
103 return n; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
104 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
105 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
106 // <group> ::= '('<regex>')' |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
107 static |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
108 NodePtr group(RegexInfoPtr ri) { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
109 return regex(ri); |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
110 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
111 |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
112 static |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
113 void token(RegexInfoPtr ri) { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
114 while (ri->ptr[0] != '\0') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
115 if (ri->ptr[0] == '('){ |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
116 ri->ptr++; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
117 ri->tokenType = '('; |
118 | 118 ri->tokenValue = NULL; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
119 if (ri->ptr[1] == ')') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
120 ri->ptr++; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
121 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
122 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
123 } else if (ri->ptr[0] == ')') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
124 ri->ptr++; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
125 ri->tokenType = ')'; |
118 | 126 ri->tokenValue = ri->ptr; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
127 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
128 } else if (ri->ptr[0] == '[') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
129 ri->ptr++; |
122 | 130 ri->tokenType = 'c'; |
118 | 131 ri->tokenValue = ri->ptr; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
132 if (ri->ptr[1] == ']') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
133 ri->ptr++; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
134 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
135 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
136 } else if (ri->ptr[0] == '|'){ |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
137 ri->ptr++; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
138 ri->tokenType = '|'; |
118 | 139 ri->tokenValue = NULL; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
140 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
141 } else if (ri->ptr[0] == '*'){ |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
142 ri->ptr++; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
143 ri->tokenType = '*'; |
118 | 144 ri->tokenValue = NULL; |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
145 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
146 } else if (ri->ptr[0] == '\\'){ |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
147 // need more proccesing |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
148 /* |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
149 \277 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
150 \0xa5 |
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 \utf-8 etc... |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
154 */ |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
155 } else { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
156 ri->tokenType = 'a'; |
118 | 157 ri->tokenValue = ri->ptr; |
122 | 158 while (isalnum(ri->ptr[0])) { |
159 ri->ptr++; | |
160 } | |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
161 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
162 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
163 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
164 return; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
165 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
166 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
167 // <regexAtom> ::= <literal>|<charClass>|<group> |
112
ec485345daf9
some function use static
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
108
diff
changeset
|
168 static |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
169 NodePtr regexAtom(RegexInfoPtr ri) { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
170 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
171 token(ri); |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
172 NodePtr n = NULL; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
173 if (ri->tokenType == 'a') n = literal(ri); |
122 | 174 else if (ri->tokenType == 'c') n = charClass(ri); |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
175 else if (ri->tokenType == '(') n = group(ri); |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
176 |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
177 return n; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
178 } |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
179 |
125 | 180 // <regex> ::= <regexAtom> | <regexAtom>'*' | <regexAtom>'|'<regex> | <regexAtom><regex> | '(' regex ')' |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
181 NodePtr regex(RegexInfoPtr ri) { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
182 NodePtr n = regexAtom(ri); |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
183 while (ri->ptr[0]) { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
184 token(ri); |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
185 if (ri->tokenType == '*') { |
125 | 186 n = createNode(ri,'*',n,0); |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
187 } else if (ri->tokenType == '|') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
188 NodePtr n1 = regex(ri); |
125 | 189 n = createNode(ri,'|',n,n1); |
82
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
190 } else if (ri->tokenType == ')') { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
191 return n; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
192 } else { |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
193 NodePtr n1 = regex(ri); |
125 | 194 n = createNode(ri,'a',n,n1); |
82
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 } return n; |
1d9bbf922bb6
add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff
changeset
|
197 } |