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authorIngo Schwarze <schwarze@openbsd.org>2018-12-21 17:15:18 +0000
committerIngo Schwarze <schwarze@openbsd.org>2018-12-21 17:15:18 +0000
commitaa202260e540ec4a7df78e75b104f0a1c7d0c197 (patch)
tree7026ff0235f04dfac31019e6937889dc71cbf161 /regress/mdoc/Op/arg.out_markdown
parentbeeeef576df2a17cc8bdf0191709fa80bd2f524c (diff)
downloadmandoc-aa202260e540ec4a7df78e75b104f0a1c7d0c197.tar.gz
Rename mandoc_getarg() to roff_getarg() and pass it the roff parser
struct as an argument such that after copy-in, it can call roff_expand() once again, which used to be called roff_res() before this. This fixes a subtle low-level roff(7) parsing bug reported by Fabio Scotoni <fabio at esse dot ch> in the 4.4BSD-Lite2 mdoc.samples(7) manual page, because that page used an escaped escape sequence in a macro argument. To expand escaped escape sequences in quoted mdoc(7) arguments, too, stop bypassing the call to roff_getarg() in mdoc_argv.c, function args() for this case. This does not solve the case of escaped escape sequences in quoted .Bl -column phrases yet. Because roff_expand() can make the string longer, roff_getarg() can no longer operate in-place but needs to malloc(3) the returned string. In the high-level parsers, free(3) that string after processing it.
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diff --git a/regress/mdoc/Op/arg.out_markdown b/regress/mdoc/Op/arg.out_markdown
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+OP-ARG(1) - General Commands Manual
+
+# NAME
+
+**Op-arg** - escape sequences in the arguments of partial implicit macros
+
+# DESCRIPTION
+
+unquoted unescaped:
+\[&#64;]
+
+quoted unescaped:
+\[&#64;]
+
+unquoted escaped:
+\[&#64;]
+
+quoted escaped:
+\[&#64;]
+
+OpenBSD - December 21, 2018