tinyrl.h 6.1 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. #define UTF8_MASK 0xC0
  15. #define UTF8_11 0xC0
  16. #define UTF8_10 0x80
  17. _BEGIN_C_DECL typedef struct _tinyrl tinyrl_t;
  18. typedef enum {
  19. /**
  20. * no possible completions were found
  21. */
  22. TINYRL_NO_MATCH = 0,
  23. /**
  24. * the provided string was already an exact match
  25. */
  26. TINYRL_MATCH,
  27. /**
  28. * the provided string was ambiguous and produced
  29. * more than one possible completion
  30. */
  31. TINYRL_AMBIGUOUS,
  32. /**
  33. * the provided string was unambiguous and a
  34. * completion was performed
  35. */
  36. TINYRL_COMPLETED_MATCH,
  37. /**
  38. * the provided string was ambiguous but a partial
  39. * completion was performed.
  40. */
  41. TINYRL_COMPLETED_AMBIGUOUS,
  42. /**
  43. * the provided string was an exact match for one
  44. * possible value but there are other exetensions
  45. * of the string available.
  46. */
  47. TINYRL_MATCH_WITH_EXTENSIONS
  48. } tinyrl_match_e;
  49. /* virtual methods */
  50. typedef char *tinyrl_compentry_func_t(tinyrl_t * instance,
  51. const char *text, unsigned offset, unsigned state);
  52. typedef int tinyrl_hook_func_t(tinyrl_t * instance);
  53. typedef char **tinyrl_completion_func_t(tinyrl_t * instance,
  54. const char *text, unsigned start, unsigned end);
  55. /**
  56. * \return
  57. * - BOOL_TRUE if the action associated with the key has
  58. * been performed successfully
  59. * - BOOL_FALSE if the action was not successful
  60. */
  61. typedef bool_t tinyrl_key_func_t(tinyrl_t * instance, int key);
  62. /* exported functions */
  63. extern tinyrl_t *tinyrl_new(FILE * instream,
  64. FILE * outstream,
  65. unsigned stifle,
  66. tinyrl_completion_func_t * complete_fn);
  67. /*lint -esym(534,tinyrl_printf) Ignoring return value of function */
  68. extern int tinyrl_printf(const tinyrl_t * instance, const char *fmt, ...);
  69. extern void tinyrl_delete(tinyrl_t * instance);
  70. extern tinyrl_history_t *tinyrl__get_history(const tinyrl_t * instance);
  71. extern const char *tinyrl__get_prompt(const tinyrl_t * instance);
  72. extern void tinyrl__set_prompt(tinyrl_t *instance, const char *prompt);
  73. extern void tinyrl_done(tinyrl_t * instance);
  74. extern void tinyrl_completion_over(tinyrl_t * instance);
  75. extern void tinyrl_completion_error_over(tinyrl_t * instance);
  76. extern bool_t tinyrl_is_completion_error_over(const tinyrl_t * instance);
  77. extern void *tinyrl__get_context(const tinyrl_t * instance);
  78. /**
  79. * This operation returns the current line in use by the tinyrl instance
  80. * NB. the pointer will become invalid after any further operation on the
  81. * instance.
  82. */
  83. extern const char *tinyrl__get_line(const tinyrl_t * instance);
  84. extern void tinyrl__set_istream(tinyrl_t * instance, FILE * istream);
  85. extern bool_t tinyrl__get_isatty(const tinyrl_t * instance);
  86. extern FILE *tinyrl__get_istream(const tinyrl_t * instance);
  87. extern FILE *tinyrl__get_ostream(const tinyrl_t * instance);
  88. extern bool_t tinyrl__get_utf8(const tinyrl_t * instance);
  89. extern void tinyrl__set_utf8(tinyrl_t * instance, bool_t utf8);
  90. extern char *tinyrl_readline(tinyrl_t * instance,
  91. const char *prompt, void *context);
  92. extern char *tinyrl_forceline(tinyrl_t * instance,
  93. const char *prompt,
  94. void *context, const char *line);
  95. extern bool_t
  96. tinyrl_bind_key(tinyrl_t * instance, int key, tinyrl_key_func_t * fn);
  97. extern void tinyrl_delete_matches(char **instance);
  98. extern char **tinyrl_completion(tinyrl_t * instance,
  99. const char *line,
  100. unsigned start,
  101. unsigned end,
  102. tinyrl_compentry_func_t * generator);
  103. extern void tinyrl_crlf(const tinyrl_t * instance);
  104. extern void tinyrl_ding(const tinyrl_t * instance);
  105. extern void tinyrl_reset_line_state(tinyrl_t * instance);
  106. extern bool_t tinyrl_insert_text(tinyrl_t * instance, const char *text);
  107. extern void
  108. tinyrl_delete_text(tinyrl_t * instance, unsigned start, unsigned end);
  109. extern void tinyrl_redisplay(tinyrl_t * instance);
  110. extern void
  111. tinyrl_replace_line(tinyrl_t * instance, const char *text, int clear_undo);
  112. /**
  113. * Complete the current word in the input buffer, displaying
  114. * a prompt to clarify any abiguity if necessary.
  115. *
  116. * \return
  117. * - the type of match performed.
  118. * \post
  119. * - If the current word is ambiguous then a list of
  120. * possible completions will be displayed.
  121. */
  122. extern tinyrl_match_e tinyrl_complete(tinyrl_t * instance);
  123. /**
  124. * Complete the current word in the input buffer, displaying
  125. * a prompt to clarify any abiguity or extra extensions if necessary.
  126. *
  127. * \return
  128. * - the type of match performed.
  129. * \post
  130. * - If the current word is ambiguous then a list of
  131. * possible completions will be displayed.
  132. * - If the current word is complete but there are extra
  133. * completions which are an extension of that word then
  134. * a list of these will be displayed.
  135. */
  136. extern tinyrl_match_e tinyrl_complete_with_extensions(tinyrl_t * instance);
  137. /**
  138. * Disable echoing of input characters when a line in input.
  139. *
  140. */
  141. extern void tinyrl_disable_echo(
  142. /**
  143. * The instance on which to operate
  144. */
  145. tinyrl_t * instance,
  146. /**
  147. * The character to display instead of a key press.
  148. *
  149. * If this has the special value '/0' then the insertion point will not
  150. * be moved when keys are pressed.
  151. */
  152. char echo_char);
  153. /**
  154. * Enable key echoing for this instance. (This is the default behaviour)
  155. */
  156. extern void tinyrl_enable_echo(
  157. /**
  158. * The instance on which to operate
  159. */
  160. tinyrl_t * instance);
  161. /**
  162. * Indicate whether the current insertion point is quoting or not
  163. */
  164. extern bool_t tinyrl_is_quoting(
  165. /**
  166. * The instance on which to operate
  167. */
  168. const tinyrl_t * instance);
  169. /**
  170. * Limit maximum line length
  171. */
  172. extern void tinyrl_limit_line_length(
  173. /**
  174. * The instance on which to operate
  175. */
  176. tinyrl_t * instance,
  177. /**
  178. * The length to limit to (0) is unlimited
  179. */
  180. unsigned length);
  181. _END_C_DECL
  182. #endif /* _tinyrl_tinyrl_h */
  183. /** @} tinyrl_tinyrl */