tinyrl.h 7.0 KB

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  1. /**
  2. \ingroup tinyrl
  3. \defgroup tinyrl_class tinyrl
  4. @{
  5. \brief This class provides instances which are capable of handling user input
  6. from a CLI in a "readline" like fashion.
  7. */
  8. #ifndef _tinyrl_tinyrl_h
  9. #define _tinyrl_tinyrl_h
  10. #include <stdio.h>
  11. #include "lub/types.h"
  12. #include "lub/c_decl.h"
  13. #include "tinyrl/history.h"
  14. _BEGIN_C_DECL typedef struct _tinyrl tinyrl_t;
  15. typedef enum {
  16. /**
  17. * no possible completions were found
  18. */
  19. TINYRL_NO_MATCH = 0,
  20. /**
  21. * the provided string was already an exact match
  22. */
  23. TINYRL_MATCH,
  24. /**
  25. * the provided string was ambiguous and produced
  26. * more than one possible completion
  27. */
  28. TINYRL_AMBIGUOUS,
  29. /**
  30. * the provided string was unambiguous and a
  31. * completion was performed
  32. */
  33. TINYRL_COMPLETED_MATCH,
  34. /**
  35. * the provided string was ambiguous but a partial
  36. * completion was performed.
  37. */
  38. TINYRL_COMPLETED_AMBIGUOUS,
  39. /**
  40. * the provided string was an exact match for one
  41. * possible value but there are other exetensions
  42. * of the string available.
  43. */
  44. TINYRL_MATCH_WITH_EXTENSIONS
  45. } tinyrl_match_e;
  46. /* virtual methods */
  47. typedef char *tinyrl_compentry_func_t(tinyrl_t * instance,
  48. const char *text, unsigned offset, unsigned state);
  49. typedef int tinyrl_hook_func_t(tinyrl_t * instance);
  50. typedef char **tinyrl_completion_func_t(tinyrl_t * instance,
  51. const char *text, unsigned start, unsigned end);
  52. typedef int tinyrl_timeout_fn_t(tinyrl_t *instance);
  53. typedef int tinyrl_keypress_fn_t(tinyrl_t *instance, int key);
  54. /**
  55. * \return
  56. * - BOOL_TRUE if the action associated with the key has
  57. * been performed successfully
  58. * - BOOL_FALSE if the action was not successful
  59. */
  60. typedef bool_t tinyrl_key_func_t(tinyrl_t * instance, int key);
  61. /* exported functions */
  62. extern tinyrl_t *tinyrl_new(FILE * instream,
  63. FILE * outstream,
  64. unsigned stifle,
  65. tinyrl_completion_func_t * complete_fn);
  66. /*lint -esym(534,tinyrl_printf) Ignoring return value of function */
  67. extern int tinyrl_printf(const tinyrl_t * instance, const char *fmt, ...);
  68. extern void tinyrl_delete(tinyrl_t * instance);
  69. extern tinyrl_history_t *tinyrl__get_history(const tinyrl_t * instance);
  70. extern const char *tinyrl__get_prompt(const tinyrl_t * instance);
  71. extern void tinyrl__set_prompt(tinyrl_t *instance, const char *prompt);
  72. extern void tinyrl_done(tinyrl_t * instance);
  73. extern void tinyrl_completion_over(tinyrl_t * instance);
  74. extern void tinyrl_completion_error_over(tinyrl_t * instance);
  75. extern bool_t tinyrl_is_completion_error_over(const tinyrl_t * instance);
  76. extern void *tinyrl__get_context(const tinyrl_t * instance);
  77. /**
  78. * This operation returns the current line in use by the tinyrl instance
  79. * NB. the pointer will become invalid after any further operation on the
  80. * instance.
  81. */
  82. extern const char *tinyrl__get_line(const tinyrl_t * instance);
  83. extern void tinyrl__set_istream(tinyrl_t * instance, FILE * istream);
  84. extern bool_t tinyrl__get_isatty(const tinyrl_t * instance);
  85. extern FILE *tinyrl__get_istream(const tinyrl_t * instance);
  86. extern FILE *tinyrl__get_ostream(const tinyrl_t * instance);
  87. extern bool_t tinyrl__get_utf8(const tinyrl_t * instance);
  88. extern void tinyrl__set_utf8(tinyrl_t * instance, bool_t utf8);
  89. extern void tinyrl__set_timeout(tinyrl_t *instance, int timeout);
  90. extern void tinyrl__set_timeout_fn(tinyrl_t *instance,
  91. tinyrl_timeout_fn_t *fn);
  92. extern void tinyrl__set_keypress_fn(tinyrl_t *instance,
  93. tinyrl_keypress_fn_t *fn);
  94. extern void tinyrl__set_hotkey_fn(tinyrl_t *instance,
  95. tinyrl_key_func_t *fn);
  96. extern char *tinyrl_readline(tinyrl_t *instance, void *context);
  97. extern char *tinyrl_forceline(tinyrl_t *instance,
  98. void *context, const char *line);
  99. extern bool_t tinyrl_bind_key(tinyrl_t *instance, int key,
  100. tinyrl_key_func_t *fn);
  101. extern void tinyrl_delete_matches(char **instance);
  102. extern char **tinyrl_completion(tinyrl_t *instance,
  103. const char *line, unsigned start, unsigned end,
  104. tinyrl_compentry_func_t *generator);
  105. extern void tinyrl_crlf(const tinyrl_t * instance);
  106. extern void tinyrl_multi_crlf(const tinyrl_t * instance);
  107. extern void tinyrl_ding(const tinyrl_t * instance);
  108. extern void tinyrl_reset_line_state(tinyrl_t * instance);
  109. extern bool_t tinyrl_insert_text(tinyrl_t * instance, const char *text);
  110. extern void
  111. tinyrl_delete_text(tinyrl_t * instance, unsigned start, unsigned end);
  112. extern void tinyrl_redisplay(tinyrl_t * instance);
  113. extern void
  114. tinyrl_replace_line(tinyrl_t * instance, const char *text, int clear_undo);
  115. /**
  116. * Complete the current word in the input buffer, displaying
  117. * a prompt to clarify any abiguity if necessary.
  118. *
  119. * \return
  120. * - the type of match performed.
  121. * \post
  122. * - If the current word is ambiguous then a list of
  123. * possible completions will be displayed.
  124. */
  125. extern tinyrl_match_e tinyrl_complete(tinyrl_t * instance);
  126. /**
  127. * Complete the current word in the input buffer, displaying
  128. * a prompt to clarify any abiguity or extra extensions if necessary.
  129. *
  130. * \return
  131. * - the type of match performed.
  132. * \post
  133. * - If the current word is ambiguous then a list of
  134. * possible completions will be displayed.
  135. * - If the current word is complete but there are extra
  136. * completions which are an extension of that word then
  137. * a list of these will be displayed.
  138. */
  139. extern tinyrl_match_e tinyrl_complete_with_extensions(tinyrl_t * instance);
  140. /**
  141. * Disable echoing of input characters when a line in input.
  142. *
  143. */
  144. extern void tinyrl_disable_echo(
  145. /**
  146. * The instance on which to operate
  147. */
  148. tinyrl_t * instance,
  149. /**
  150. * The character to display instead of a key press.
  151. *
  152. * If this has the special value '/0' then the insertion point will not
  153. * be moved when keys are pressed.
  154. */
  155. char echo_char);
  156. /**
  157. * Enable key echoing for this instance. (This is the default behaviour)
  158. */
  159. extern void tinyrl_enable_echo(
  160. /**
  161. * The instance on which to operate
  162. */
  163. tinyrl_t * instance);
  164. /**
  165. * Indicate whether the current insertion point is quoting or not
  166. */
  167. extern bool_t tinyrl_is_quoting(
  168. /**
  169. * The instance on which to operate
  170. */
  171. const tinyrl_t * instance);
  172. /**
  173. * Indicate whether the current insertion is empty or not
  174. */
  175. extern bool_t
  176. tinyrl_is_empty(
  177. /**
  178. * The instance on which to operate
  179. */
  180. const tinyrl_t *instance
  181. );
  182. /**
  183. * Limit maximum line length
  184. */
  185. extern void tinyrl_limit_line_length(
  186. /**
  187. * The instance on which to operate
  188. */
  189. tinyrl_t * instance,
  190. /**
  191. * The length to limit to (0) is unlimited
  192. */
  193. unsigned length);
  194. extern unsigned tinyrl__get_width(const tinyrl_t *instance);
  195. extern unsigned tinyrl__get_height(const tinyrl_t *instance);
  196. extern int tinyrl__save_history(const tinyrl_t *instance, const char *fname);
  197. extern int tinyrl__restore_history(tinyrl_t *instance, const char *fname);
  198. extern void tinyrl__stifle_history(tinyrl_t *instance, unsigned int stifle);
  199. _END_C_DECL
  200. #endif /* _tinyrl_tinyrl_h */
  201. /** @} tinyrl_tinyrl */