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annotate th_string.h @ 674:dfabc7eef3dd

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Add new functions th_split_string() and th_join_string().
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 25 Feb 2020 05:16:42 +0200
parents 284d5b789b7c
children 83a48de05fe9
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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 2002-2020 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 /// @file
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9 /// @brief String utility functions
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10 #ifndef TH_STRING_H
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11 #define TH_STRING_H
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12
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13 #include "th_util.h"
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14 #include <ctype.h>
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15
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16 #ifdef __cplusplus
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17 extern "C" {
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18 #endif
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19
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21 /** @def String utility wrapper macros
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22 */
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23 #define th_isalnum(c) isalnum((int)(unsigned char) (c))
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24 #define th_isalpha(c) isalpha((int)(unsigned char) (c))
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25 #define th_isascii(c) isascii((int)(unsigned char) (c))
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26 #define th_isblank(c) isblank((int)(unsigned char) (c))
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27 #define th_iscntrl(c) iscntrl((int)(unsigned char) (c))
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28 #define th_isdigit(c) isdigit((int)(unsigned char) (c))
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29 #define th_isgraph(c) isgraph((int)(unsigned char) (c))
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30 #define th_islower(c) islower((int)(unsigned char) (c))
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31 #define th_isprint(c) isprint((int)(unsigned char) (c))
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32 #define th_ispunct(c) ispunct((int)(unsigned char) (c))
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33 #define th_isspace(c) isspace((int)(unsigned char) (c))
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34 #define th_isupper(c) isupper((int)(unsigned char) (c))
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35 #define th_isxdigit(c) isxdigit((int)(unsigned char) (c))
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36 #define th_iscrlf(c) ((c) == '\r' || (c) == '\n')
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38 #define th_tolower(c) tolower((int)(unsigned char) (c))
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39 #define th_toupper(c) toupper((int)(unsigned char) (c))
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42 /** @brief
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43 * String trimming option flags for th_strdup_trim()
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44 */
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45 enum
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46 {
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47 TH_TRIM_START = 1, ///< Trim whitespace from start of the string
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48 TH_TRIM_END = 2, ///< Trim whitespace from end of the string
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49 TH_TRIM_BOTH = 3, ///< Trim whitespace from start and end of the string
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50 };
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53 /** @brief
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54 * Internal *printf() implementation flags
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55 */
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56 enum
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57 {
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58 TH_PF_NONE = 0x0000,
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59 TH_PF_ALT = 0x0001,
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60 TH_PF_SIGN = 0x0002,
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61 TH_PF_SPACE = 0x0004,
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62 TH_PF_GROUP = 0x0008,
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64 TH_PF_ZERO = 0x0100,
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65 TH_PF_LEFT = 0x0200,
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67 TH_PF_LONG = 0x1000,
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68 TH_PF_LONGLONG = 0x2000,
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69 TH_PF_POINTER = 0x4000,
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70 TH_PF_UPCASE = 0x8000,
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71 };
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74 /** @struct th_vprintf_ctx
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75 * Internal printf() implementation context structure, contains state information
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76 * used by the printf() code for "output" purposes.
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77 */
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78 typedef struct
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79 {
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80 th_char_t *buf; ///< Resulting string buffer pointer (might not be used if printing to file or such)
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81 size_t size; ///< Size of result string buffer
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82 size_t pos; ///< Current position in the buffer
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83 int ipos; ///< Signed position
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84 void *data; ///< Pointer to other data (for example a FILE pointer)
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85 } th_vprintf_ctx;
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88 /** @brief
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89 * A putch() helper function typedef for internal printf() implementation
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90 * @param[in,out] ctx pointer to internal printf() state context structure.
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91 * @param[in] ch character to be outputted
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92 * @returns the character @p ch cast to int or @c EOF in case of error
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93 */
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94 typedef int (*th_vprintf_putch)(th_vprintf_ctx *ctx, const th_char_t ch);
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97 /** @brief
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98 * Internal *printf() implementation helper function typedef
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99 * for alternative formatting, such as octal and hexadecimal
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100 */
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101 typedef th_char_t * (*th_vprintf_altfmt_func)(
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102 const th_char_t *buf, const size_t len, const int vret, int *prec, int *flags, int *outlen);
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103
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104 #define TH_VPRINTF_ALTFMT_FUNC(fname) th_char_t * fname ( \
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105 const th_char_t *buf, const size_t len, const int vret, int *prec, int *flags, int *outlen)
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108 TH_VPRINTF_ALTFMT_FUNC(th_vprintf_altfmt_oct);
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109 TH_VPRINTF_ALTFMT_FUNC(th_vprintf_altfmt_hex);
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110
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111
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112 /* Normal NUL-terminated string functions
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113 */
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114 th_char_t *th_strdup(const th_char_t *src);
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115 th_char_t *th_strndup(const th_char_t *src, const size_t n);
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116 th_char_t *th_strdup_trim(const th_char_t *src, const int flags);
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117 th_char_t *th_strndup_trim(const th_char_t *src, const size_t n, const int flags);
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118
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119 th_char_t *th_strndup_no0(const th_char_t *src, const size_t len);
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120 th_char_t *th_strndup_no0_trim(const th_char_t *src, const size_t len, const int flags);
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121
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122 int th_strcasecmp(const th_char_t *haystack, const th_char_t *needle);
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123 int th_strncasecmp(const th_char_t *haystack, const th_char_t *needle, size_t n);
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124 th_char_t *th_strrcasecmp(th_char_t *haystack, const th_char_t *needle);
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125
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126 int th_vsnprintf(th_char_t *buf, size_t size, const th_char_t *fmt, va_list ap);
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127 int th_snprintf(th_char_t *buf, size_t size, const th_char_t *fmt, ...)
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128 TH_ATTR_PRINTF_FMT(3, 4);
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129 int th_vfprintf(FILE *fh, const th_char_t *fmt, va_list ap);
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130 int th_fprintf(FILE *fh, const th_char_t *fmt, ...)
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131 TH_ATTR_PRINTF_FMT(2, 3);
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132
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133
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134 th_char_t *th_strdup_vprintf(const th_char_t *fmt, va_list ap);
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135 th_char_t *th_strdup_printf(const th_char_t *fmt, ...)
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136 TH_ATTR_PRINTF_FMT(1, 2);
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137
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138 void th_pstr_vprintf(th_char_t **buf, const th_char_t *fmt, va_list ap);
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139 void th_pstr_printf(th_char_t **buf, const th_char_t *fmt, ...)
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140 TH_ATTR_PRINTF_FMT(2, 3);
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141
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142 int th_pstr_cpy(th_char_t **pdst, const th_char_t *src);
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143 int th_pstr_cat(th_char_t **pdst, const th_char_t *src);
186
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144
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145 int th_split_string(const char *str, char ***elems, size_t *nelems, const char *sep);
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146 int th_join_string(char **str, char **elems, const size_t nelems, const char *sep);
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147
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148
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149 /* Internal printf() implementation. NOTICE! This API may be unstable.
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150 */
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151 int th_vprintf_do(th_vprintf_ctx *ctx, th_vprintf_putch vputch,
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152 const th_char_t *fmt, va_list ap);
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153
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154 int th_vprintf_put_str(th_vprintf_ctx *ctx, th_vprintf_putch vputch,
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155 const th_char_t *str, int f_flags, const int f_width, const int f_prec);
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156
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157 int th_vprintf_put_int(th_vprintf_ctx *ctx, th_vprintf_putch vputch,
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158 va_list ap, const int f_radix, int f_flags, int f_width, int f_prec,
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159 const BOOL f_unsig, th_vprintf_altfmt_func f_alt);
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160
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161 int th_vprintf_put_int_format(th_vprintf_ctx *ctx, th_vprintf_putch vputch,
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162 th_char_t *buf, int f_flags, int f_width, int f_prec, int f_len, int vret,
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163 BOOL f_neg, BOOL f_unsig, th_vprintf_altfmt_func f_alt);
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164
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165
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166 #define TH_VPRINTF_INTFMT_NAME th_vprintf_buf_int
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167 #define TH_VPRINTF_INTFMT_TYPE_S int
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168 #define TH_VPRINTF_INTFMT_TYPE_U unsigned int
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169 #define TH_VPRINTF_INTFMT_HEADER 1
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170 #include "th_printf1.c"
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171
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172
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173 #define TH_VPRINTF_INTFMT_NAME th_vprintf_buf_int64
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174 #define TH_VPRINTF_INTFMT_TYPE_S int64_t
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175 #define TH_VPRINTF_INTFMT_TYPE_U uint64_t
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176 #define TH_VPRINTF_INTFMT_HEADER 1
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177 #include "th_printf1.c"
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178
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179
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180 #ifdef TH_PRINTF_DEBUG
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181 extern BOOL th_printf_debug;
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182 extern char *th_printf_debug_prefix;
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183 #endif
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184
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185
78
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186 /* Parsing, matching
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187 */
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188 const th_char_t *th_findnext(const th_char_t *str, size_t *pos);
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189 const th_char_t *th_findsep(const th_char_t *str, size_t *pos, const th_char_t sep);
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190 const th_char_t *th_findseporspace(const th_char_t *str, size_t *pos, const th_char_t sep);
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191
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192 BOOL th_strmatch(const th_char_t *haystack, const th_char_t *pattern);
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193 BOOL th_strcasematch(const th_char_t *haystack, const th_char_t *pattern);
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194
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195 BOOL th_get_hex_triplet(const th_char_t *str, unsigned int *value);
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196 BOOL th_get_boolean(const th_char_t *str, BOOL *value);
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197 BOOL th_get_int(const th_char_t *str, unsigned int *value, BOOL *neg);
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198
21
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199
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200 #ifdef __cplusplus
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201 }
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202 #endif
129
aa2d608fb3f3 Cosmetics.
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203 #endif // TH_STRING_H