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Choose the input source file encoding in a locale-independent way.

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This is so that compiling the same code on environments with different
locale settings yields the same result.

* module/system/base/compile.scm (compile-file): When ENC if #f, default
  to "UTF-8" instead of `(fluid-ref %default-port-encoding)'.

* doc/ref/api-evaluation.texi (Compilation): Document the default output
  file name and default source file encoding for `compile-file' and
  `guile-tools compile'.
This commit is contained in:
Ludovic Courtès 2011-01-24 21:44:44 +01:00
parent bc03d89fa2
commit eda0622095
2 changed files with 13 additions and 5 deletions
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11
doc/ref/api-evaluation.texi
View file

@ -567,8 +567,9 @@ Add @var{dir} to the front of the module load path.
@item -o @var{ofile} @item -o @var{ofile}
@itemx --output=@var{ofile} @itemx --output=@var{ofile}
Write output bytecode to @var{ofile}. By convention, bytecode file names end Write output bytecode to @var{ofile}. By convention, bytecode file
in @code{.go}. names end in @code{.go}. When @option{-o} is omitted, the output file
name is as for @code{compile-file} (see below).
@item -W @var{warning} @item -W @var{warning}
@itemx --warn=@var{warning} @itemx --warn=@var{warning}
@ -589,6 +590,9 @@ Use @var{lang} as the target language of @var{file}. If this option is omitted,
@end table @end table
Each @var{file} is assumed to be UTF-8-encoded, unless it contains a
coding declaration as recognized by @code{file-encoding}
(@pxref{Character Encoding of Source Files}).
@end deffn @end deffn
The compiler can also be invoked directly by Scheme code using the procedures The compiler can also be invoked directly by Scheme code using the procedures
@ -608,6 +612,9 @@ Compile the file named @var{file}.
Output will be written to a file in the current directory whose name Output will be written to a file in the current directory whose name
is computed as @code{(compiled-file-name @var{file})}. is computed as @code{(compiled-file-name @var{file})}.
As with @command{guile-tools compile}, @var{file} is assumed to be
UTF-8-encoded unless it contains a coding declaration.
@end deffn @end deffn
@deffn {Scheme Procedure} compiled-file-name file @deffn {Scheme Procedure} compiled-file-name file

7
module/system/base/compile.scm
View file

@ -1,6 +1,6 @@
;;; High-level compiler interface ;;; High-level compiler interface
;; Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc. ;; Copyright (C) 2001, 2009, 2010, 2011 Free Software Foundation, Inc.
;;; This library is free software; you can redistribute it and/or ;;; This library is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Lesser General Public ;;; modify it under the terms of the GNU Lesser General Public
@ -120,8 +120,9 @@
(let* ((comp (or output-file (compiled-file-name file))) (let* ((comp (or output-file (compiled-file-name file)))
(in (open-input-file file)) (in (open-input-file file))
(enc (file-encoding in))) (enc (file-encoding in)))
(if enc ;; Choose the input encoding deterministically.
(set-port-encoding! in enc)) (set-port-encoding! in (or enc "UTF-8"))
(ensure-writable-dir (dirname comp)) (ensure-writable-dir (dirname comp))
(call-with-output-file/atomic comp (call-with-output-file/atomic comp
(lambda (port) (lambda (port)