Mercurial > hg > Applications > Grep

annotate c/regexParser/main.cc @ 59:af189c727733

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Tue, 14 Jul 2015 14:08:36 +0900
parents 4053c3e0fa7f
children 8616a045a7f4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
1 /*
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
2 * <literal> ::= [a-z][A-Z][0-9]
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
3 * <charClass> ::= '['<literal>'-'<literal>']'
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
4 * <string> ::= <literal><literal>*
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
5 * <group> ::= '('<regex>')'
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
6 * <or> ::= <regex>'|'<regex>
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
7 * <*> ::= <regex>'*'
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
8 * <regex> ::= <string>|<or>|<charClass>|<group>|<*>
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
9 */
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
10
45
89a198fa6b23 add dfrTobin
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 #include <stdio.h>
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
12 #include <stdlib.h>
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
13 #include <string.h>
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
14
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
15 typedef struct node {
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
16 struct node *self;
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
17 char character;
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
18 struct node *left;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
19 struct node *right;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
20 } Node, *NodePtr;
52
a2826bf4e80a remove magic number
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 51
diff changeset
21
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
22 char *ptr;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
23 NodePtr regexHeadNode;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
24
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
25 NodePtr charClass();
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
26 NodePtr string();
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
27 NodePtr group();
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
28 NodePtr _or();
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
29 NodePtr asterisk();
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
30 NodePtr regex();
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
31 NodePtr createNode(char,NodePtr,NodePtr);
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
32
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
33 NodePtr createNode(char character, NodePtr left, NodePtr right) {
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
34 NodePtr n = (NodePtr)malloc(sizeof(Node));
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
35 n->self = n;
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
36 n->character = character;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
37 n->left = left;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
38 n->right = right;
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
39
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
40 return n;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
41 }
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
42
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
43 // <charClass> ::= '['<literal>'-'<literal>']'
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
44 NodePtr charClass() {
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
45 ptr++;
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
46 NodePtr n = createNode(0,0,0);
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
47 return n;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
48 }
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
49
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
50 // <literal> ::= [a-z][A-Z][0-9]
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
51 NodePtr literal() {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
52 char c = *ptr;
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
53 NodePtr n = createNode(c,0,0);
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
54 ptr++;
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
55 return n;
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
56 }
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
57
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
58 // <string> ::= <literal><literal>*
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
59 NodePtr string() {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
60 char c = *ptr;
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
61 NodePtr n = NULL;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
62 printf("%c\n",c);
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
63 if (('a'<=c && c<='z')||('A'<=c && c<='Z')||('0'<=c && c<='9')) {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
64 n = createNode(0,literal(),string());
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
65 } else {
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
66 n = createNode(0,0,0);
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
67 }
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
68 return n;
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
69 }
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
70
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
71 // <group> ::= '('<regex>')' | '('<regex>'|'<regex>')'
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
72 NodePtr group() {
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
73 NodePtr n;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
74 if (*ptr == ')') {
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
75 n = createNode(0,0,0);
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
76 ptr++;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
77 } else {
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
78 ptr++;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
79 n = regex();
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
80 }
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
81
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
82 return n;
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
83 }
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
84
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
85
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
86 // <or> ::= <regex>'|'<regex>
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
87 NodePtr _or() {
59
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 58
diff changeset
88 ptr++;
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
89 NodePtr n = createNode('|',regexHeadNode,regex());
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
90 return n;
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
91 }
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
92
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
93 // <*> ::= <regex>'*'
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
94 NodePtr asterisk() {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
95
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
96 }
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
97
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
98 // <regex> ::= <string>|<or>|<charClass>|<group>|<*>
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
99 NodePtr regex() {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
100
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
101 NodePtr n;
49
f76fe618d5a7 implement bitset
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 48
diff changeset
102
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
103 while (*ptr != '\0') {
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
104 if ((*ptr == '(') || (*ptr == ')')) {
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
105 n = group();
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
106 } else if (*ptr == '[') {
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
107 n = charClass();
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
108 } else if (*ptr == '|'){
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
109 n = _or();
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
110 } else {
57
71b497d25273 fix literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 56
diff changeset
111 n = string();
58
4053c3e0fa7f implement group()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 57
diff changeset
112 regexHeadNode = n;
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
113 }
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
114 }
50
bb0e88fbbe02 impl bitGet and bitSet
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 49
diff changeset
115
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
116 return n;
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
117 }
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
118
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
119 int
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
120 main(int argc, char **argv)
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
121 {
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
122 for (int i = 1; i < argc; i++) {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
123 if (strcmp(argv[i],"-regex") == 0) {
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
124 ptr = argv[i+1]; i++;
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
125 }
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
126 }
55
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 54
diff changeset
127
56
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
128 printf("regex : %s\n",ptr);
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
129 NodePtr n = regex();
8901bc071d33 implement string() and literal()
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 55
diff changeset
130
45
89a198fa6b23 add dfrTobin
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 return 0;
89a198fa6b23 add dfrTobin
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 }