For deletion, we need to check the bounds before the deletion happens,
otherwise the overlay may already be moved to wrong place.
* yasnippet.el (yas--before-change-modified-snippets): New variable.
(yas--merge-and-drop-dups): New function.
(yas--gather-active-snippets): New function.
(yas--on-field-overlay-modification): Use it.
* yasnippet.el
* yasnippet.el (yas--todo-snippet-indent): New variable.
(yas--on-field-overlay-modification): Save snippet to it, and don't
indent after mirror update.
(yas--do-todo-field-updates): New function.
(yas--post-command-handler): Call it.
(yas--snippet-field-mirrors, yas--indent-mirrors-of-snippet): New
functions, split out from...
(yas--snippet-field-mirrors): ...here.
* yasnippet-tests.el (yas-test-delete-and-insert-command)
(indent-mirrors-on-complex-update): New test and helper function.
There was some half-backed code getting confused between "plain"
snapshort info and line+snapshot info leading to some type errors when
expanding snippets in org-mode src blocks. I had wrongly assumed the
failures were only due to org version 9 changes (in fact, the org
changes only affect snippet expansion for text-mode (and probably
other non-fontifying modes too)). Reorganize the snapshotting
functions so that line+snaphot has the line info after the marker,
next to the rest of the snapshot info. This removes the need for list
manipulation and simplifies the code. Furthermore, let the
restoration functions take the info as a list, rather than separate
arguments, this removes the need for several uses of `apply'.
* yasnippet.el (yas--snapshot-location): Renamed from
yas--snapshot-marker-location, don't return marker.
(yas--snapshot-line-location): New function.
(yas--goto-saved-location): Take single list arg. Return point.
(yas--restore-marker-location): Remove, open code callers.
(yas--goto-saved-line-location)
(yas--restore-overlay-line-location): New functions.
(yas--prepare-snippets-for-move, yas--finish-moving-snippets)
(yas--auto-fill, yas--indent-region): Adjust callers of previously
mentioned functions accordingly.
* yasnippet-tests.el (yas-org-native-tab-in-source-block-text):
Renamed from yas-org-native-tab-in-source-block.
(yas-org-native-tab-in-source-block-emacs-lisp): New test.
(do-yas-org-native-tab-in-source-block): Take MODE parameter.
Generally, the user won't be interacting with, or creating snippets in
temporary buffers.
* yasnippet.el (yas-temp-buffer-p): New function.
(yas-dont-activate-functions): Add it to default value.
* yasnippet-tests.el (complicated-yas-key-syntaxes)
(test-yas-activate-extra-modes): Call yas-minor-mode instead of
yas-minor-mode-on, to ensure activation.
* yasnippet.el (yas--modes-to-activate): If a mode doesn't have a
`derived-mode-parent' property, use `fundamental-mode'.
* yasnippet-tests.el (loading-with-cyclic-parenthood)
(issue-492-and-494): Expect fundamental-mode to be active.
* doc/snippet-expansion.org (Eligible snippets): Mention that
fundamental-mode is a fallback parent mode.
* yasnippet.el (yas--on-field-overlay-modification): Call
yas--advance-end-maybe on all pending active snippets in case of
stacked expansion.
(yas-next-field): Get current snippet according to
active field bounds.
* yasnippet-tests.el (nested-snippet-expansion-4): New test.
Suggested by OGAWA Hirofumi in
https://github.com/joaotavora/yasnippet/issues/953.
* yasnippet.el (yas--snippet-create): Call before and after change
functions around yas--snippet-parse-create.
* yasnippet-tests.el (indent-cc-mode-2): New test.
* yasnippet-tests.el (auto-next-field): New test.
(yas-saving-variables): Move up in the file.
* yasnippet.el (yas--auto-next): New helper.
(yas-auto-next): New user-visible snippet helper.
* doc/snippet-development.org (Choosing fields value from a list
and other tricks): Add mention of yas-auto-next.
Unless yas-also-auto-indent-first-line applies.
* yasnippet.el (yas--indent): Check that forward-line successfully
moved 1 line forward before trying to indent.
* yasnippet-tests.el (yas-indent-first-line)
(yas-indent-first-line-fixed): New tests.
The previous changed failed to account for command snippets which have
lists for bodies, not strings.
* yasnippet.el (yas-expand-snippet): Don't error if SNIPPET is a list
representing a command snippet body.
* yasnippet-tests.el (yas-expand-command-snippet): New test.
This allows proper handling of a snippet's expand-env field when doing
(yas-expand-snippet (yas-lookup-snippet NAME))
* yasnippet.el (yas-expand-snippet): Return the yas--template struct
instead of snippet body.
(yas-expand-snippet): Let first argument be a yas--template struct.
* yasnippet-tests.el (snippet-lookup, snippet-load-uuid): Update tests
accordingly.
(yas-lookup-snippet-with-env): New test.
* yasnippet.el (yas--backquote-markers-and-strings): Remove.
(yas--save-backquotes): Return list of backquote expressions.
(yas--restore-backquotes): Receive it as a parameter.
(yas--snippet-parse-create): Keep it in a local variable.
* yasnippet-tests.el (yas-no-memory-of-bad-snippet): New test.
Rather than embedding the conditionality inside the function body, and
hardcoding fallback to `delete-char'. This allows users who want, for
example, to use backspace for field skipping to simply do
(define-key yas-minor-mode-map (kbd "DEL")
yas-maybe-skip-and-clear-field)
* yasnippet.el (yas-skip-and-clear-field, yas-current-field)
(yas--maybe-clear-field-filter): New command and function, extracted
from yas-skip-and-clear-or-delete-char.
(yas-skip-and-clear-or-delete-char): Mark obsolete.
(yas-maybe-skip-and-clear-field): New constant, for conditional
binding.
(yas-keymap): Bind it to `C-d' instead of
`yas-skip-and-clear-or-delete-char'.
* yasnippet-tests.el (delete-numberless-inner-snippet-issue-562): Use
`yas-skip-and-clear-field' instead of
`yas-skip-and-clear-or-delete-char'.
* yasnippet.el (yasnippet-unload-function): New function.
* yasnippet-debug.el (yas-exterminate-package): Remove, it was only
doing a partial job of undoing modes, and uninterning is entirely not
needed.
* yasnippet-tests.el (yas-unload): New test.
The fact that they didn't prevented a deletion of the parent field to
also delete the child, confusing snippet navigation.
* yasnippet-tests.el (delete-nested-simple-field-issue-824): Add a
test for this issue.
* yasnippet.el (yas--calculate-simple-fom-parentage): Renamed from
yas--calculate-mirrors-in-fields. Generalize to FOMs.
(yas--transform-mirror-parse-create): Call yas--simple-fom-create
and yas--calculate-simple-fom-parentage.
(yas--simple-fom-create): Rename from
yas--simple-mirror-parse-create. Call
yas--calculate-simple-fom-parentage also for fields.
On 2018-01-01 "Fix undo when first line indentation moves snippet
forward", `yas--take-care-of-redo' removed the BEG and END arguments,
but the call added to `buffer-undo-list' from `yas--snippet-revive',
was not updated accordingly.
* yasnippet.el (yas--snippet-revive): Remove `beg' and `end' from
`yas--take-care-of-redo' entry.
* yasnippet-tests.el (undo-redo): New test.
* yasnippet.el (yas-expand-snippet): Only use the `to-delete' text if
`region-active-p' return true.
* yasnippet-tests.el (expand-with-unused-yas-selected-text): New test.
* yasnippet-tests.el (yas-test-expand-and-undo): New helper function.
(undo-indentation-1, undo-indentation-2, undo-indentation-multiline-1)
(undo-indentation-multiline-2): Use it.
* yasnippet.el (yas--first-indent-undo, yas--get-indent-undo-pos):
Remove.
(yas-expand-snippet): Move undo-related code from here...
(yas--snippet-create): ... to here. Collect undo information from
yas--indent in the normal, unsuppressed way.
(yas--indent-region): Don't collect undo information specially.
(yas--take-care-of-redo): Remove unused parameters.
* yasnippet-tests.el (undo-indentation-1): Rename from
undo-indentation.
(undo-indentation-2): New test.
(undo-indentation-multiline-1): Rename from
undo-indentation-multiline.
(undo-indentation-multiline-2): New test.
* yasnippet.el (yas-new-snippet-buffer-name): New constant, holds the
name of new snippet buffers. Change it to "+new-snippet+" to avoid
the leading "*" from fooling whitespace-global-mode into thinking it
shouldn't activate.
(yas-new-snippet):
* yasnippet-tests.el (snippet-save): Use the constant instead of
hardcoding the literal string.
* yasnippet.el (yas-also-auto-indent-first-line): New option.
(yas--indent-region): Also indent empty lines if it's set.
* yasnippet-tests.el (yas-also-indent-empty-lines): New test.
* Rakefile (.elc): Set byte-compile-force-lexical-warnings when
compiling.
(:compile_all): New target that compiles yasnippet-debug.el and
yasnippet-tests.el too.
* .travis.yml (script): Use it instead of `compile'. Update cl-lib to
0.6.1. Don't error on warnings for Emacs 24.3 on yasnippet-tests.el.
* yasnippet-debug.el: Don't use `yas--loaddir' if it's not
bound (e.g., when compiling). Require `color' and `edebug' at
toplevel. Check if `subr-x' defines `when-let'.
(yas-debug-snippet-vars): Remove, it was unused and broken.
* yasnippet-tests.el (yas-with-snippet-dirs, (yas-should-expand)
(yas--collect-menu-items, yas-should-not-expand, yas-mock-insert)
(yas-mock-yank, yas--key-binding, yas-make-file-or-dirs)
(yas-variables, yas-call-with-saving-variables)
(yas-call-with-snippet-dirs, special-mode, string-suffix-p): Move to
top section.
(yas-tests--ran-exit-hook): Rename from yas--ran-exit-hook, and move
to top-level.
* yasnippet.el (yas--letenv): Evaluate the FORMs of ENV.
* NEWS: Update for 0.12 changes.
* snippets/: Update to latest.
* yasnippet-debug.el:
* yasnippet-tests.el:
* yasnippet.el: Update copright years. Update version number to
0.12.0.
* yasnippet.el (yas--get-indent-undo-pos): Renamed from
yas--return-first-indent-undo.
(yas-expand-snippet): Bind it to line beginning of snippet expansion
position.
* yasnippet-tests.el (undo-indentation, undo-indentation-multiline):
New tests for this and previous fix.
* yasnippet-tests.el (auto-fill-with-multiparagraph): New test.
* yasnippet.el (yas--auto-fill): Don't snapshot markers outside of
current paragraph.
(yas--goto-saved-location, yas--snapshot-marker-location): Count
newlines as whitespace (even if mode marks them as non-whitespace
syntax, e.g., comment end).
(yas--snapshot-overlay-location, yas--restore-overlay-location): Don't
snapshot overlay position which is outside of BEG .. END.
* yasnippet.el (yas--place-overlays): Don't move active field overlays
unless we're working on the innermost snippet.
(yas--move-to-field): Keep `yas--active-field-overlay's `yas--snippet'
property in sync with its `yas--field' property.
* yasnippet-tests.el (nested-snippet-expansion-1): Rename from
nested-snippet-expansion-1.
(nested-snippet-expansion-2, nested-snippet-expansion-3): New tests.
* yasnippet.el (yas-expand-snippet): Use the snippet's bindings when
moving to the first field. This prevents getting an error when using
a variable defined in expand-env.
* yasnippet-tests.el (snippet-mirror-bindings): New test, check if
mirror transformations have access to variables defined in the snippet
environment.
* yasnippet.el (yas--eval-for-effect): Use `yas--safely-call-fun'
instead of `yas--safely-run-hook'.
(yas--safely-call-fun): Display the called argument (even a lambda) on
errors.
(yas--safely-run-hook): Take a hook variable instead of the hook value
itself. Use `run-hooks' to take buffer-local values into account.
This means it’s no longer possible to warn which hook function had an
error.
(yas--check-commit-snippet): Refactor to conform to
`yas--safely-run-hooks'.
* yasnippet-tests.el (snippet-exit-hooks-bindings): New test that
checks for buffer-local, global and env hooks support.
* yasnippet.el (yas--update-mirrors): Delay indentation until all
mirrors are updated.
(yas--mirror-update-display): Don't indent here.
* yasnippet-tests.el (single-line-multi-mirror-indentation-2): New test.
org-mode implements the "native" tab for source blocks by copying the
source block text into a temporary buffer, calling the command bound to
<tab>, and then copying back the result. To preserve snippets in this
scenario, when the temp buffer is killed we record the relative
locations of the snippet's markers and overlays and then put them into
place in the post command handler.
* yasnippet-tests.el (yas-org-native-tab-in-source-block): New test.
* yasnippet.el (yas--snippets-to-move): New variable.
(yas--prepare-snippets-for-move, yas--finish-moving-snippets): New
function.
(yas--on-buffer-kill): New function, add to `kill-buffer-hook'.
(yas--maybe-move-to-active-field): New function.
(yas--snippet-revive): Use it.
(yas--snapshot-marker-location): Change format of location info.
(yas--goto-saved-location): New function.
(yas--restore-marker-location): Use it.
(yas--snapshot-overlay-location): New function.
(yas--restore-overlay-location): Use it.
(yas--post-command-handler): Call `yas--finish-moving-snippets'.
Instead of making yas-expand and yas-expand-from-keymap search for the
command that would have been called, use a conditional keybinding so the
Emacs' builtin keybinding lookup code will do the searching instead.
* doc/faq.org: Remove section about old method binding method. Update
example to use new method.
* doc/snippet-expansion.org (Trigger key): Update explanation for new
method.
* yasnippet.el (yas-fallback-behavior): Mark obsolete.
(yas--maybe-expand-key-filter): New function.
(yas-maybe-expand): New conditional binding.
(yas-minor-mode-map): Bind it to TAB and <tab>.
(yas--maybe-expand-from-keymap-filter): New function, extracted from
`yas-expand-from-keymap'.
(yas-maybe-expand-from-keymap): New conditional binding.
* yasnippet-tests.el (yas--key-binding): New function, like
`key-binding' but overrides `this-command-keys-vector'.
(snippet-load-uuid): Use it.
(test-yas-tab-binding, test-yas-in-org): Insert snippet key before
testing binding.
* yasnippet-tests.el (yas-with-even-more-interesting-snippet-dirs): Add
debug declaration.
(yas--collect-menu-items): New function.
(test-yas-define-menu): Use it to become keymap format agnostic.
* yasnippet.el (yas--delete-from-keymap): This function deletes entries
created by `yas--update-template-menu', which are always list elements.
Skip other types of keymap elements.
(yas--define-menu-1): Create a keymap with a vector element instead of a
list with gensym symbol binding list.
* yasnippet.el (yas--snapshot-marker-location): New function, save a
regexp and whitespace count determining a marker's location in a line.
(yas--restore-marker-location): New function, restores a marker's
location based on info from `yas--snapshot-marker-location'.
(yas--indent-region): Use them to fix marker locations after indentation.
* yasnippet-tests.el (indent-org-property, indent-cc-mode):
(indent-snippet-mode): New tests.
* yasnippet.el (yas-active-snippets): Rename from
yas--snippets-at-point, adjust callers. Handle arbitrary positions and
ranges as a parameter.
* yasnippet-tests.el (nested-snippet-expansion): New test.
* yasnippet.el (yas--find-next-field): For negative N, actually give the
Nth previous field, not the 1st field.
* yasnippet-tests.el (field-navigation): Add a 3rd field, and test
calling `yas-prev-field' while on it.
Fixes#722.
