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 /* entire document except leading and trailing empty lines */
  15 Filerange text_object_entire_inner(Text*, size_t pos);
  16 /* word which happens to be at pos without any neighbouring white spaces */
  17 Filerange text_object_word(Text*, size_t pos);
  18 /* includes trailing white spaces. if at pos happens to be a white space
  19  * include all neighbouring leading white spaces and the following word. */
  20 Filerange text_object_word_outer(Text*, size_t pos);
  21 /* find next occurance of `word' (as word not substring) in forward/backward direction */
  22 Filerange text_object_word_find_next(Text*, size_t pos, const char *word);
  23 Filerange text_object_word_find_prev(Text*, size_t pos, const char *word);
  24 /* same semantics as above but for a longword (i.e. delimited by white spaces) */
  25 Filerange text_object_longword(Text*, size_t pos);
  26 Filerange text_object_longword_outer(Text*, size_t pos);
  27
  28 Filerange text_object_line(Text*, size_t pos);
  29 Filerange text_object_line_inner(Text*, size_t pos);
  30 Filerange text_object_sentence(Text*, size_t pos);
  31 Filerange text_object_paragraph(Text*, size_t pos);
  32
  33 /* C like function definition */
  34 Filerange text_object_function(Text*, size_t pos);
  35 /* inner variant only contains the function body */
  36 Filerange text_object_function_inner(Text*, size_t pos);
  37 /* these are inner text objects i.e. the delimiters themself are not
  38  * included in the range */
  39 Filerange text_object_square_bracket(Text*, size_t pos);
  40 Filerange text_object_curly_bracket(Text*, size_t pos);
  41 Filerange text_object_angle_bracket(Text*, size_t pos);
  42 Filerange text_object_paranthese(Text*, size_t pos);
  43 Filerange text_object_quote(Text*, size_t pos);
  44 Filerange text_object_single_quote(Text*, size_t pos);
  45 Filerange text_object_backtick(Text*, size_t pos);
  46 /* text object delimited by arbitrary chars for which isboundary returns non-zero */
  47 Filerange text_object_range(Text*, size_t pos, int (*isboundary)(int));
  48 /* a number in either decimal, hex or octal format */
  49 Filerange text_object_number(Text*, size_t pos);
  50 Filerange text_object_filename(Text*, size_t pos);
  51 /* match a search term in either forward or backward direction */
  52 Filerange text_object_search_forward(Text*, size_t pos, Regex*);
  53 Filerange text_object_search_backward(Text*, size_t pos, Regex*);
  54 /* match all lines with same indendation level than the current one */
  55 Filerange text_object_indentation(Text*, size_t pos);
  56
  57 /* extend a range to cover whole lines */
  58 Filerange text_range_linewise(Text*, Filerange*);
  59 /* trim leading and trailing white spaces from range */
  60 Filerange text_range_inner(Text*, Filerange*);
  61 /* test whether a given range covers whole lines */
  62 bool text_range_is_linewise(Text*, Filerange*);
  63
  64 #endif