text-objects.h

   1 #ifndef TEXT_OBJECTS_H
   2 #define TEXT_OBJECTS_H
   3
   4 /* these functions all take a file position. if this position is part of the
   5  * respective text-object, a corresponding range is returned. if there is no
   6  * such text-object at the given location, an empty range is returned.
   7  */
   8
   9 #include <stddef.h>
  10 #include "text.h"
  11
  12 /* return range covering the entire text */
  13 Filerange text_object_entire(Text*, size_t pos);
  14 /* word which happens to be at pos without any neighbouring white spaces */
  15 Filerange text_object_word(Text*, size_t pos);
  16 /* includes trailing white spaces. if at pos happens to be a white space
  17  * include all neighbouring leading white spaces and the following word. */
  18 Filerange text_object_word_outer(Text*, size_t pos);
  19 /* find next occurance of `word' (as word not substring) in forward/backward direction */
  20 Filerange text_object_word_find_next(Text*, size_t pos, const char *word);
  21 Filerange text_object_word_find_prev(Text*, size_t pos, const char *word);
  22 /* find next occurance of a literal string (not regex) in forward/backward direction */
  23 Filerange text_object_find_next(Text *txt, size_t pos, const char *search);
  24 Filerange text_object_find_prev(Text *txt, size_t pos, const char *search);
  25 /* same semantics as above but for a longword (i.e. delimited by white spaces) */
  26 Filerange text_object_longword(Text*, size_t pos);
  27 Filerange text_object_longword_outer(Text*, size_t pos);
  28
  29 Filerange text_object_line(Text*, size_t pos);
  30 Filerange text_object_line_inner(Text*, size_t pos);
  31 Filerange text_object_sentence(Text*, size_t pos);
  32 Filerange text_object_paragraph(Text*, size_t pos);
  33 Filerange text_object_paragraph_outer(Text*, size_t pos);
  34
  35 /* these are inner text objects i.e. the delimiters themself are not
  36  * included in the range */
  37 Filerange text_object_square_bracket(Text*, size_t pos);
  38 Filerange text_object_curly_bracket(Text*, size_t pos);
  39 Filerange text_object_angle_bracket(Text*, size_t pos);
  40 Filerange text_object_parenthesis(Text*, size_t pos);
  41 Filerange text_object_quote(Text*, size_t pos);
  42 Filerange text_object_single_quote(Text*, size_t pos);
  43 Filerange text_object_backtick(Text*, size_t pos);
  44 /* match a search term in either forward or backward direction */
  45 Filerange text_object_search_forward(Text*, size_t pos, Regex*);
  46 Filerange text_object_search_backward(Text*, size_t pos, Regex*);
  47 /* match all lines with same indendation level than the current one */
  48 Filerange text_object_indentation(Text*, size_t pos);
  49
  50 /* extend a range to cover whole lines */
  51 Filerange text_range_linewise(Text*, Filerange*);
  52 /* trim leading and trailing white spaces from range */
  53 Filerange text_range_inner(Text*, Filerange*);
  54 /* test whether a given range covers whole lines */
  55 bool text_range_is_linewise(Text*, Filerange*);
  56
  57 #endif