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Re: function-called-at-point: ignore-errors around find-tag-default

From: Karl Chen
Subject: Re: function-called-at-point: ignore-errors around find-tag-default
Date: Mon, 14 Feb 2005 11:06:58 -0800
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

>>>>> On 2005-02-14 05:40 PST, Stefan Monnier writes:

    >> In some modes (tex-mode), `find-tag-default' can misbehave
    >> and error.
    Stefan> To better judge which is the right thing to do, could
    Stefan> you describe what kind of misbehavior/error can happen
    Stefan> and in which circumstance?


Using `tex-mode' from textmodes/tex-mode.el (rather than from

(find-file "/tmp/a.tex")
(insert "\begin")
(find-tag-default)  ; on the same line as "\begin"

Error: scan-error; Data: (Containing expression ends prematurely 2 2)

This happens because tex-mode defines a function for
`forward-sexp-function' which looks for "\end".
`find-tag-default' assumes the regular forward-sexp function which
only considers single-character syntaxes (and thus would never
error if point is after \(\sw\|\s_\)+ )

Karl 2005-02-14 10:55

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