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annotate c/regexParser/createRegexParser.cc @ 97:0b6940588e88 impl-bitvector

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add node->parent
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Tue, 10 Nov 2015 16:18:06 +0900
parents 1cdad0468484
children 1e5b56e8263b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 #include <stdlib.h>
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2 #include <stdio.h>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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3 #include "regexParser.h"
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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4
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5 NodePtr createNode(RegexInfoPtr,unsigned char,NodePtr,NodePtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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6 NodePtr charClass(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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7 NodePtr group(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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8 void token(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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9 NodePtr regexAtom(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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10 NodePtr regex(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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11
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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12 /**
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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13 * Create a node of regex parse tree.
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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14 * tokenType
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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15 * regexPosition(state)
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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16 * stateTransitionTable
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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17 */
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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18 NodePtr createNode(RegexInfoPtr ri,unsigned char character, NodePtr left, NodePtr right) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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19 NodePtr n = (NodePtr)malloc(sizeof(Node));
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parents: 87
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20 n->tokenType = ri->tokenType;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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21 n->self = n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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22 n->Value.character = character;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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23 n->left = left;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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24 n->right = right;
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25
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26 if (ri->tokenType != 'a') {
0b6940588e88 add node->parent
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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27 n->right = right;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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28 n->left->parent = n->right->parent = n->self;
0b6940588e88 add node->parent
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 95
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29 }
0b6940588e88 add node->parent
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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30
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31 if (ri->tokenType == 'a') {
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32 n->nodeNumber = ri->nodeNumber;
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33 ri->nodeNumber++;
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34 ri->tokenType = 0;
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35 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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36 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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37 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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38
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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39 // <charClass> ::= '['<literal>'-'<literal>']'
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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40 NodePtr charClass(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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41 NodePtr n = (NodePtr)malloc(sizeof(Node));
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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42 unsigned char startChar = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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43 while (ri->ptr[0] == '-') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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44 ri->ptr++;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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45 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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46 unsigned char endChar = ri->ptr[0];
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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47 unsigned char *charTable = (unsigned char*)malloc(sizeof(char)*256);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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48
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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49 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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50 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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51
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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52 // <literal> ::= [a-z][A-Z][0-9]
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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53 NodePtr literal(RegexInfoPtr ri) {
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masa
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54 unsigned char *top = ri->ptr;
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parents: 87
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55 NodePtr n = createNode(ri,ri->ptr[0],0,0);
87
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 85
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56 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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57 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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58 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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59
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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60 // <group> ::= '('<regex>')'
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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61 NodePtr group(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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62 return regex(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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63 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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64
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65
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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66
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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67 void token(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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68 while (ri->ptr[0] != '\0') {
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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69 if (ri->ptr[0] == '('){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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70 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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71 ri->tokenType = '(';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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72 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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73 if (ri->ptr[1] == ')') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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74 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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75 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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76 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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77 } else if (ri->ptr[0] == ')') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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78 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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79 ri->tokenType = ')';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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80 ri->tokenValue = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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81 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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82 } else if (ri->ptr[0] == '[') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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83 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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84 ri->tokenType = '[';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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85 ri->tokenValue = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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86 if (ri->ptr[1] == ']') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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87 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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88 }
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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89 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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90 } else if (ri->ptr[0] == '|'){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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91 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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92 ri->tokenType = '|';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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93 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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94 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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95 } else if (ri->ptr[0] == '*'){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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96 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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97 ri->tokenType = '*';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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98 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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99 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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100 } else if (ri->ptr[0] == '\\'){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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101 // need more proccesing
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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102 /*
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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103 \277
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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104 \0xa5
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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105 \[
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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106 \\
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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107 \utf-8 etc...
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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108 */
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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109 } else {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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110 ri->tokenType = 'a';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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111 ri->tokenValue = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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112 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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113 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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114 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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115 ri->tokenType = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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116 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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117 return;
1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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118 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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119
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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120 // <regexAtom> ::= <literal>|<charClass>|<group>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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121 NodePtr regexAtom(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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122
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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123 token(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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124 NodePtr n = NULL;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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125 if (ri->tokenType == 'a') n = literal(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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126 else if (ri->tokenType == '[') n = charClass(ri);
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127 else if (ri->tokenType == '(') n = group(ri);
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128
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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129 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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130 }
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131
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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132 // <regex> ::= <regexAtom>|<regexAtom>'*'|<regexAtom>'|'<regex>|<regexAtom><regex>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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133 NodePtr regex(RegexInfoPtr ri) {
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134 NodePtr n = regexAtom(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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135 while (ri->ptr[0]) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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136 token(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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137 if (ri->tokenType == '*') {
89
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 87
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138 n = createNode(ri,'*',n,0);
82
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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139 } else if (ri->tokenType == '|') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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140 NodePtr n1 = regex(ri);
89
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 87
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141 n = createNode(ri,'|',n,n1);
82
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parents:
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142 } else if (ri->tokenType == ')') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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143 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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144 } else {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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145 NodePtr n1 = regex(ri);
89
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 87
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146 n = createNode(ri,'+',n,n1);
82
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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147 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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148 } return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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149 }