libcm is a C development framework with an emphasis on audio signal processing applications.
Vous ne pouvez pas sélectionner plus de 25 sujets Les noms de sujets doivent commencer par une lettre ou un nombre, peuvent contenir des tirets ('-') et peuvent comporter jusqu'à 35 caractères.

cmText.h 11KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278
  1. #ifndef cmText_h
  2. #define cmText_h
  3. #ifdef __cplusplus
  4. extern "C" {
  5. #endif
  6. //{
  7. //(
  8. // The cmText API supports two basic tasks: the generation of
  9. // formatted text into dynamic arrays and text to number parsing.
  10. //
  11. //)
  12. //(
  13. enum
  14. {
  15. kOkTxRC = 0,
  16. kNullTxRC,
  17. kCvtErrTxRC,
  18. kLHeapFailTxRC
  19. };
  20. typedef unsigned cmTxRC_t;
  21. typedef cmHandle_t cmTextSysH_t;
  22. extern cmTextSysH_t cmTextSysNullHandle;
  23. cmTxRC_t cmTextSysInitialize( cmCtx_t* ctx, cmTextSysH_t* hp );
  24. cmTxRC_t cmTextSysFinalize( cmTextSysH_t* hp );
  25. bool cmTextSysIsValid( cmTextSysH_t h );
  26. // Print the string into a static, global, but resizable, buffer.
  27. // This string is only valid until the next call to cmTextSysPrintS().
  28. // This function is not currently thread safe - calls from different
  29. // threads can therefore overwrite one anothers buffered strings
  30. // unexpectedly.
  31. cmChar_t* cmTextSysVPrintfS( cmTextSysH_t h, const cmChar_t* fmt, va_list vl );
  32. cmChar_t* cmTextSysPrintfS( cmTextSysH_t h, const cmChar_t* fmt, ... );
  33. // Print the string into memory supplied by a linked heap.
  34. // Strings returned from this function may be deallocated with a call to
  35. // cmLhFree().
  36. cmChar_t* cmTextSysVPrintfH( cmLHeapH_t h, const cmChar_t* fmt, va_list vl );
  37. cmChar_t* cmTextSysPrintfH( cmLHeapH_t h, const cmChar_t* fmt, ... );
  38. // Print a string and store it in the internal text system heap.
  39. // The memory used by these strings will be automatically released
  40. // whent he text system is destroyed. The caller may optionally release
  41. // a string via cmTextSysFreeStr().
  42. cmChar_t* cmTextSysVPrintf( cmTextSysH_t h, const cmChar_t* fmt, va_list vl );
  43. cmChar_t* cmTextSysPrintf( cmTextSysH_t h, const cmChar_t* fmt, ... );
  44. void cmTextSysFreeStr( cmTextSysH_t h, const cmChar_t* s );
  45. // Return true if 's' is stored in the text systems internal heap,
  46. bool cmTextSysIsStored(cmTextSysH_t h, const cmChar_t* s );
  47. //
  48. // Global interface:
  49. //
  50. // These functions are equivalent to the same-named functions above
  51. // but use a globally allocated cmTextSysH_t handle.
  52. cmTxRC_t cmTsInitialize( cmCtx_t* ctx );
  53. cmTxRC_t cmTsFinalize();
  54. bool cmTsIsValid();
  55. cmChar_t* cmTsVPrintfS( const cmChar_t* fmt, va_list vl );
  56. cmChar_t* cmTsPrintfS( const cmChar_t* fmt, ... );
  57. cmChar_t* cmTsVPrintfH( cmLHeapH_t h, const cmChar_t* fmt, va_list vl );
  58. cmChar_t* cmTsPrintfH( cmLHeapH_t h, const cmChar_t* fmt, ... );
  59. cmChar_t* cmTsVPrintf( const cmChar_t* fmt, va_list vl );
  60. cmChar_t* cmTsPrintf( const cmChar_t* fmt, ... );
  61. void cmTsFreeStr( const cmChar_t* s );
  62. bool cmTsIsStored(const cmChar_t* s );
  63. // Print a formatted string into s[]. s[] is reallocated as necessary to
  64. // hold the string. s must be freed by the caller via cmMemFree().
  65. cmChar_t* cmTsVPrintfP( cmChar_t* s, const cmChar_t* fmt, va_list vl );
  66. cmChar_t* cmTsPrintfP( cmChar_t* s, const cmChar_t* fmt, ... );
  67. // Set err to NULL to ignore errors.
  68. //
  69. cmTxRC_t cmTextToInt( const char* text, int* ip, cmErr_t* err );
  70. cmTxRC_t cmTextToUInt( const char* text, unsigned* up, cmErr_t* err );
  71. cmTxRC_t cmTextToFloat( const char* text, float* fp, cmErr_t* err );
  72. cmTxRC_t cmTextToDouble( const char* text, double* dp, cmErr_t* err );
  73. cmTxRC_t cmTextToBool( const char* text, bool* bp, cmErr_t* err );
  74. // In all cases s, s0 and s1 are expected to be non-NULL.
  75. // If any of the arguments were allowed to be NULL, then the natural
  76. // return value would be NULL and this would lead to ambiguities
  77. // with the meaning of a NULL return value.
  78. // Return ptr to next non-white or terminating 0 if EOS is encountered.
  79. cmChar_t* cmTextNextNonWhiteOrEos( cmChar_t* s );
  80. const cmChar_t* cmTextNextNonWhiteOrEosC( const cmChar_t* s );
  81. // Return ptr to next non-white char. or NULL if EOS is encountered.
  82. cmChar_t* cmTextNextNonWhite( cmChar_t* s );
  83. const cmChar_t* cmTextNextNonWhiteC( const cmChar_t* s );
  84. // Return ptr to prev non-white or s if BOS is encountered.
  85. // If returned ptr == s0 then BOS was encountered.
  86. cmChar_t* cmTextPrevNonWhiteOrBos( cmChar_t* s0, const cmChar_t* s1 );
  87. const cmChar_t* cmTextPrevNonWhiteOrBosC( const cmChar_t* s0, const cmChar_t* s1 );
  88. // Return ptr to prev non-white char. or NULL if BOS is encountered.
  89. cmChar_t* cmTextPrevNonWhite( cmChar_t* s0, const cmChar_t* s1 );
  90. const cmChar_t* cmTextPrevNonWhiteC( const cmChar_t* s0, const cmChar_t* s1 );
  91. // Return ptr to next white or terminating 0 if EOS is encountered.
  92. // ( *(return_ptr)==0 if EOS is encountered )
  93. cmChar_t* cmTextNextWhiteOrEos( cmChar_t* s );
  94. const cmChar_t* cmTextNextWhiteOrEosC( const cmChar_t* s );
  95. // Return ptr to next white char. or NULL if EOS is encountered.
  96. cmChar_t* cmTextNextWhite( cmChar_t* s );
  97. const cmChar_t* cmTextNextWhiteC( const cmChar_t* s );
  98. // Return ptr to prev white or s if BOS is encountered.
  99. // If returned ptr != s then *(returned_ptr-1) == '\n'
  100. cmChar_t* cmTextPrevWhiteOrBos( cmChar_t* s0, const cmChar_t* s1 );
  101. const cmChar_t* cmTextPrevWhiteOrBosC( const cmChar_t* s0, const cmChar_t* s1 );
  102. // Return ptr to prev white char. or NULL if BOS is encountered.
  103. cmChar_t* cmTextPrevWhite( cmChar_t* s0, const cmChar_t* s1 );
  104. const cmChar_t* cmTextPrevWhiteC( const cmChar_t* s0, const cmChar_t* s1 );
  105. // Backup to first char on line.
  106. // Return ptr to first char on line or first char in buffer.
  107. // If return_ptr!=s0 then *(return_ptr-1) == '\n'.
  108. cmChar_t* cmTextBegOfLine( cmChar_t* s0, const cmChar_t* s1 );
  109. const cmChar_t* cmTextBegOfLineC( const cmChar_t* s0, const cmChar_t* s1 );
  110. // Move forward to last char on line.
  111. // Return ptr to last char on line.
  112. // If *return_ptr == 0 then the end of buffer was encountered prior
  113. // to the next '\n' otherwise *(return_ptr) == '\n'.
  114. cmChar_t* cmTextEndOfLine( cmChar_t* s );
  115. const cmChar_t* cmTextEndOfLineC( const cmChar_t* s );
  116. // Return a pointer to the last non-white character in the string
  117. cmChar_t* cmTextLastNonWhiteChar( const cmChar_t* s );
  118. const cmChar_t* cmTextLastNonWhiteCharC( const cmChar_t* s );
  119. // Shrink the text by copying all char's beginning with t+tn to t.
  120. // ex: 'abcd' s=a, t=b, tn=1 -> acd
  121. // 'abcd' s=a, t=b, tn=2 -> ad
  122. void cmTextShrinkS( cmChar_t* s, const cmChar_t* t, unsigned tn );
  123. void cmTextShrinkSN(cmChar_t* s, unsigned sn, const cmChar_t* t, unsigned tn );
  124. // Remove the last n characters from s by inserting a '\0' at s[ strlen(s)-n ].
  125. void cmTextClip( cmChar_t* s, unsigned n );
  126. // Trim white space from the begining/end/both of a string
  127. cmChar_t* cmTextTrimBegin( cmChar_t* s );
  128. cmChar_t* cmTextTrimEnd( cmChar_t* s );
  129. cmChar_t* cmTextTrim( cmChar_t* );
  130. // Expand s by copying all bytes past t to t+tn.
  131. cmChar_t* cmTextExpandS( cmChar_t* s, const cmChar_t* t, unsigned tn );
  132. // Replace t[tn] with u[un] in s[].
  133. cmChar_t* cmTextReplaceSN( cmChar_t* s, const cmChar_t* t, unsigned tn, const cmChar_t* u, unsigned un );
  134. // Replace t[tn] with u in s[].
  135. cmChar_t* cmTextReplaceS( cmChar_t* s, const cmChar_t* t, unsigned tn, const cmChar_t* u );
  136. // Replace all occurrences of t[] with u[] in s[].
  137. cmChar_t* cmTextReplaceAll( cmChar_t* s, const cmChar_t* t, const cmChar_t* u );
  138. // Replace the first occurence of t[] in s[] with u[].
  139. cmChar_t* cmTextReplaceFirst( cmChar_t* s, const cmChar_t* t, const cmChar_t* u );
  140. // Insert u[un] at before t in s[].
  141. cmChar_t* cmTextInsertSN( cmChar_t* s, const cmChar_t* t, const cmChar_t* u, unsigned un );
  142. // Insert u[] at before t in s[].
  143. cmChar_t* cmTextInsertS( cmChar_t* s, const cmChar_t* t, const cmChar_t* u );
  144. cmChar_t* cmTextAppend( cmChar_t* s, unsigned* sn, const cmChar_t* u, unsigned un );
  145. cmChar_t* cmTextAppendSN( cmChar_t* s, const cmChar_t* u, unsigned un );
  146. // append u[un] to s[] and append terminating zero.
  147. cmChar_t* cmTextAppendSNZ( cmChar_t* s, const cmChar_t* u, unsigned un );
  148. // both s[] and u[] are strz's
  149. cmChar_t* cmTextAppendSS( cmChar_t* s, const cmChar_t* u );
  150. // Same as multiple calls to cmTextAppendSS().
  151. // Terminate the var-args list with NULL.
  152. cmChar_t* cmTextVAppendSS( cmChar_t* s, ... );
  153. // Append 'n' copies of 'c' to the end of s[].
  154. cmChar_t* cmTextAppendChar( cmChar_t* s, cmChar_t c, unsigned n );
  155. // Returns true if the string is NULL or all spaces.
  156. bool cmTextIsEmpty( const cmChar_t* s );
  157. bool cmTextIsNotEmpty( const cmChar_t* s );
  158. // Same as strlen() but handles case where s0 == NULL as length==0.
  159. unsigned cmTextLength( const cmChar_t* s0 );
  160. // Same as strcmp() but handles NULL. Note that if both s0 and s1 are NULL
  161. // then return is 0.
  162. int cmTextCmp( const cmChar_t* s0, const cmChar_t* s1 );
  163. // Same as cmTextCmp() but only compare the first 'n' characters.
  164. int cmTextCmpN( const cmChar_t* s0, const cmChar_t* s1, unsigned n );
  165. // Convert text in s0[] to upper/lower case in s1[].
  166. // Note that s0[] and s1[] may point to the same string
  167. void cmTextToLower( const cmChar_t* s0, cmChar_t* s1 );
  168. void cmTextToUpper( const cmChar_t* s0, cmChar_t* s1 );
  169. // Returns NULL if string contains fewer than lineIdx lines.
  170. // Note: first line == 1.
  171. cmChar_t* cmTextLine( cmChar_t* s, unsigned line );
  172. const cmChar_t* cmTextLineC( const cmChar_t* s, unsigned line );
  173. // Reduce all consecutive white spaces to a single space.
  174. cmChar_t* cmTextRemoveConsecutiveSpaces( cmChar_t* s );
  175. // Columnize s[] by inserting EOL's at the first available
  176. // space prior 'colCnt' columns. If no space exists then
  177. // the words will be broken. If length s[] is less than
  178. // 'colCnt' then s[] is returned with no changes.
  179. cmChar_t* cmTextColumize( cmChar_t* s, unsigned colCnt );
  180. // Indent the rows of s[] by inserting 'indent' spaces
  181. // just after each '\n'. If s[] contains no '\n' then
  182. // s[] is returned with no changes.
  183. cmChar_t* cmTextIndentRows( cmChar_t* s, unsigned indent );
  184. // Prefix all rows of s[] with p[].
  185. cmChar_t* cmTextPrefixRows( cmChar_t* s, const cmChar_t* t );
  186. // Remove leading white space from all rows of s.
  187. cmChar_t* cmTextTrimRows( cmChar_t* s );
  188. // Remove all white space prior to the first non-white space
  189. // character.
  190. cmChar_t* cmTextEatLeadingSpace( cmChar_t* s );
  191. // Return a pointer to the beginning of the next row
  192. // or NULL if there is no next row.
  193. cmChar_t* cmTextNextRow( cmChar_t* s );
  194. const cmChar_t* cmTextNextRowC( const cmChar_t* s );
  195. // Return the minimum indent of all rows in s[].
  196. unsigned cmTextMinIndent( const cmChar_t* s );
  197. // Outdent s[] by 'n'.
  198. // If a row is indented by less than 'n' then it is
  199. // then all leading white space is removed.
  200. cmChar_t* cmTextOutdent( cmChar_t* s, unsigned n );
  201. //)
  202. //}
  203. #ifdef __cplusplus
  204. }
  205. #endif
  206. #endif