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1 /*
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2 * Miscellaneous string-handling related utility-functions
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3 * Programmed and designed by Matti 'ccr' Hamalainen
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4 * (C) Copyright 2002-2008 Tecnic Software productions (TNSP)
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5 *
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6 * Please read file 'COPYING' for information on license and distribution.
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7 */
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8 #ifndef _TH_STRING_H
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9 #define _TH_STRING_H
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10
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11 #ifdef __cplusplus
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12 extern "C" {
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13 #endif
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14
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15 #include "th_util.h"
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16 #include <stdlib.h>
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17 #include <ctype.h>
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18
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19 /*
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20 * Macros
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21 */
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22 /* TODO - Remove usage of libc functions for increased portability.
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23 * Possible issues are locales, impossible to implement them...
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24 */
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25 #define th_isalnum(c) isalnum((int)(unsigned char) c)
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26 #define th_isalpha(c) isalpha((int)(unsigned char) c)
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27 #define th_isascii(c) isascii((int)(unsigned char) c)
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28 #define th_isblank(c) isblank((int)(unsigned char) c)
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29 #define th_iscntrl(c) iscntrl((int)(unsigned char) c)
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30 #define th_isdigit(c) isdigit((int)(unsigned char) c)
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31 #define th_isgraph(c) isgraph((int)(unsigned char) c)
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32 #define th_islower(c) islower((int)(unsigned char) c)
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33 #define th_isprint(c) isprint((int)(unsigned char) c)
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34 #define th_ispunct(c) ispunct((int)(unsigned char) c)
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35 #define th_isspace(c) isspace((int)(unsigned char) c)
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36 #define th_isupper(c) isupper((int)(unsigned char) c)
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37 #define th_isxdigit(c) isxdigit((int)(unsigned char) c)
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38 #define th_iscrlf(c) ((c=='\r')||(c=='\n'))
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39
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40 #define th_isspecial(q) (((q >= 0x5b) && (q <= 0x60)) || ((q >= 0x7b) && (q <= 0x7d)))
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41
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42 #define th_tolower(c) tolower((int)(unsigned char) c)
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43 #define th_toupper(c) toupper((int)(unsigned char) c)
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44
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45 /*
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46 * Typedefs and structures
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47 */
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48 typedef struct tstrnode {
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49 char_t *pcStr; /* String */
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50 ulint_t nUsed; /* Times this string has been referenced */
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51 void *pData; /* Extra data */
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52
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53 struct tstrnode *pPrev, *pNext;
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54 } t_str_node;
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55
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56
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57 #define SET_HASH_MAXINDEX (256)
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58
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59 typedef t_str_node *t_str_hash[SET_HASH_MAXINDEX];
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60
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61
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62 typedef struct tstrindex {
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63 t_str_node **ppIndex;
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64 ulint_t n;
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65 } t_str_index;
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66
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67
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68 /*
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69 * Normal NUL-terminated string functions
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70 */
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71 char_t *th_stralloc(size_t);
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72 char_t *th_strrealloc(char_t *, size_t);
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73 size_t th_strlen(char_t *);
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74 char_t *th_strdup(char_t *);
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75 char_t *th_strcat(char_t *, char_t *);
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76 char_t *th_strcpy(char_t *, char_t *);
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77 char_t *th_strncpy(char_t *, char_t *, size_t);
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78 int th_strcmp(char_t *, char_t *);
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79 int th_strncmp(char_t *, char_t *, size_t);
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80 int th_strcasecmp(char_t *, char_t *);
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81 int th_strncasecmp(char_t *, char_t *, size_t);
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82 void th_strip_ctrlchars(char_t *);
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83 char_t *th_strstr(char_t *, char_t *);
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84
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85 int th_pstrcpy(char_t **, char_t *);
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86 int th_pstrcat(char_t **, char_t *);
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87
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88 char_t *th_findnext(char_t *, size_t *);
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89 char_t *th_findsep(char_t *, size_t *, char_t);
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90 char_t *th_findseporspace(char_t *, size_t *, char_t);
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91
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92 BOOL th_strmatch(char_t *, char_t *);
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93 BOOL th_strcasematch(char_t *, char_t *);
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94
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95
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96 /*
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97 * Handling of string-lists and hashes
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98 */
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99 t_str_node * th_strnode_new(char_t *, ulint_t, void *);
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100 void th_strnode_free(t_str_node *);
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101 void th_strlist_free(t_str_node *);
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102 void th_strlist_insert(t_str_node **, t_str_node *);
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103 int th_strhash_insert(t_str_node **, t_str_node *, BOOL);
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104 void th_strhash_free(t_str_node **);
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105 void th_strhash_change_pdata(t_str_hash, void *, void *);
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106 t_str_node * th_strhash_search(t_str_node **, char_t *, BOOL);
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107 t_str_index * th_strhash_makeindex(t_str_node **);
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108 t_str_index * th_strlist_makeindex(t_str_node *);
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109 void th_strindex_free(t_str_index *);
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110 void th_strindex_sort_nused(t_str_index *);
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111 void th_strindex_sort_alpha(t_str_index *);
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112
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113 #ifdef __cplusplus
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114 }
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115 #endif
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116 #endif /* _TH_STRING_H */
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