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Make snarfing tools more robust to varied C preprocessor behavior.

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* libguile/guile-snarf.in (modern_snarf): Rewrite sed script to cope
  with newlines in the snarfed code segments, or multiple code segments
  on the same line.

* module/scripts/snarf-check-and-output-texi.scm (process-stream):
  Strip all 'hash' tokens from the stream.
  (do-command): Remove special cases that handled 'hash' tokens
  in a few places.
This commit is contained in:
Mark H Weaver 2014-03-06 17:17:11 -05:00
parent bf0d59e54d
commit c3c3032608
2 changed files with 13 additions and 21 deletions
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19
libguile/guile-snarf.in
View file

@ -1,7 +1,8 @@
#!/bin/sh
# Extract the initialization actions from source files.
#
# Copyright (C) 1996, 97, 98, 99, 2000, 2001, 2002, 2004, 2006, 2008, 2009 Free Software Foundation, Inc.
# Copyright (C) 1996, 97, 98, 99, 2000, 2001, 2002, 2004, 2006, 2008,
# 2009, 2014 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
@ -51,19 +52,21 @@ modern_snarf () # writes stdout
## empty file.
echo "/* cpp arguments: $@ */" ;
${cpp} -DSCM_MAGIC_SNARF_INITS -DSCM_MAGIC_SNARFER "$@" > ${temp} && cpp_ok_p=true
sed -ne 's/ *\^ *: *\^/\
sed -ne 's/ *\^ *\^ */\
/
h
s/\n.*//
s/.*\n//
t x
d
: x
s/.*\^ *\^ *\(.*\)/\1;/
s/ *\^ *: *\^ */;\
/
t y
d
N
s/\n\(#.*\)/ /
s/\n/ /
t x
: y
p
x
P
D' ${temp}
}

15
module/scripts/snarf-check-and-output-texi.scm
View file

@ -1,6 +1,6 @@
;;; snarf-check-and-output-texi --- called by the doc snarfer.
;; Copyright (C) 2001, 2002, 2006, 2011 Free Software Foundation, Inc.
;; Copyright (C) 2001, 2002, 2006, 2011, 2014 Free Software Foundation, Inc.
;;
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public License
@ -63,7 +63,7 @@
(let loop ((s s))
(cond
((stream-null? s) #t)
((eq? 'eol (stream-car s))
((memq (stream-car s) '(eol hash))
(loop (stream-cdr s)))
(else (cons (stream-car s) (stream-cdr s))))))
(port->stream port read)))))
@ -265,17 +265,6 @@
(set! *file* file)
(set! *line* line))
;; newer gccs like to throw around more location markers into the
;; preprocessed source; these (hash . hash) bits are what they translate to
;; in snarfy terms.
(('location ('string . file) ('int . line) ('hash . 'hash))
(set! *file* file)
(set! *line* line))
(('location ('hash . 'hash) ('string . file) ('int . line) ('hash . 'hash))
(set! *file* file)
(set! *line* line))
(('arglist rest ...)
(set! *args* (do-arglist rest)))