File: edit.el.html
In Semantic 1.x, changes were handled in a simplistic manner, where tags that changed were reparsed one at a time. Any other form of edit were managed through a full reparse.
This code attempts to minimize the number of times a full reparse
needs to occur. While overlays and tags will continue to be
recycled in the simple case, new cases where tags are inserted
or old tags removed from the original list are handled.
; NOTES FOR IMPROVEMENT
Work done by the incremental parser could be improved by the following:
1. Tags created could have as a property an overlay marking a region
of themselves that can be edited w/out affecting the definition of
that tag.
2. Tags with positioned children could have a property of an
overlay marking the region in themselves that contain the
children. This could be used to better improve splicing near
the beginning and end of the child lists.
; BUGS IN INCREMENTAL PARSER
1. Changes in the whitespace between tags could extend a
following tag. These will be marked as merely unmatched
syntax instead.
2. Incremental parsing while a new function is being typed in
sometimes gets a chance only when lists are incomplete,
preventing correct context identification.
Defined variables (10)
semantic-after-partial-cache-change-hook | Normal hook run after the buffer cache has been updated. |
semantic-change-functions | Abnormal hook run when semantic detects a change in a buffer. |
semantic-edits-delete-change-functions | Abnormal hook run before a change overlay is deleted. |
semantic-edits-incremental-reparse-failed-hook | Hook run after the incremental parser fails. |
semantic-edits-move-change-hook | Abnormal hook run after a change overlay is moved. |
semantic-edits-new-change-functions | Abnormal hook run when a new change is found. |
semantic-edits-reparse-change-functions | Abnormal hook run after a change results in a reparse. |
semantic-edits-verbose-flag | Non-nil means the incremental parser is verbose. |
semantic-no-reparse-needed-change-hook | Hooks run when a user edit is detected as not needing a reparse. |
semantic-reparse-needed-change-hook | Hooks run when a user edit is detected as needing a reparse. |
Defined functions (19)
semantic-change-function | (START END LENGTH) |
semantic-changes-in-region | (START END &optional BUFFER) |
semantic-edits-change-between-tags | (CHANGE) |
semantic-edits-change-function-handle-changes | (START END LENGTH) |
semantic-edits-change-in-one-tag-p | (CHANGE HITS) |
semantic-edits-change-leaf-tag | (CHANGE) |
semantic-edits-change-over-tags | (CHANGE) |
semantic-edits-flush-change | (CHANGE) |
semantic-edits-flush-changes | () |
semantic-edits-incremental-fail | () |
semantic-edits-incremental-parser | () |
semantic-edits-incremental-parser-1 | () |
semantic-edits-oe | (CHANGE) |
semantic-edits-os | (CHANGE) |
semantic-edits-splice-insert | (NEWTAGS PARENT CACHELIST) |
semantic-edits-splice-remove | (OLDTAGS PARENT CACHELIST) |
semantic-edits-splice-replace | (OLDTAG NEWTAG) |
semantic-parse-changes-default | () |
semantic-parse-changes-failed | (&rest ARGS) |