diff options
| -rw-r--r-- | guix/self.scm | 105 |
1 files changed, 67 insertions, 38 deletions
diff --git a/guix/self.scm b/guix/self.scm index 60fe6e6b01..39dfbaadc0 100644 --- a/guix/self.scm +++ b/guix/self.scm @@ -290,6 +290,7 @@ DOMAIN, a gettext domain." #~(begin (use-modules (guix build utils) (guix build po) (ice-9 match) (ice-9 regex) (ice-9 textual-ports) + (ice-9 vlist) (srfi srfi-1)) (mkdir #$output) @@ -315,38 +316,69 @@ the result to OUTPUT." "-M" "UTF-8" "-L" "UTF-8" "-k" "0" "-f" "texinfo" "-m" source "-p" po "-l" output)) - (define (make-ref-regex msgid end) - (make-regexp (string-append - "ref\\{" - (string-join (string-split (regexp-quote msgid) #\ ) - "[ \n]+") - end))) - - (define (translate-cross-references content translations) - "Take CONTENT, a string representing a .texi file and translate any -cross-reference in it (@ref, @xref and @pxref) that have a translation in -TRANSLATIONS, an alist of msgid and msgstr." - (fold - (lambda (elem content) - (match elem - ((msgid . msgstr) - ;; Empty translations and strings containing some special characters - ;; cannot be the name of a section. - (if (or (equal? msgstr "") - (string-any (lambda (chr) - (member chr '(#\{ #\} #\( #\) #\newline #\,))) - msgid)) - content - ;; Otherwise, they might be the name of a section, so we - ;; need to translate any occurence in @(p?x?)ref{...}. - (let ((regexp1 (make-ref-regex msgid ",")) - (regexp2 (make-ref-regex msgid "\\}"))) - (regexp-substitute/global - #f regexp2 - (regexp-substitute/global - #f regexp1 content 'pre "ref{" msgstr "," 'post) - 'pre "ref{" msgstr "}" 'post)))))) - content translations)) + (define (canonicalize-whitespace str) + ;; Change whitespace (newlines, etc.) in STR to #\space. + (string-map (lambda (chr) + (if (char-set-contains? char-set:whitespace chr) + #\space + chr)) + str)) + + (define xref-regexp + ;; Texinfo cross-reference regexp. + (make-regexp "@(px|x)?ref\\{([^,}]+)")) + + (define (translate-cross-references texi translations) + ;; Translate the cross-references that appear in TEXI, a Texinfo + ;; file, using the msgid/msgstr pairs from TRANSLATIONS. + (define content + (call-with-input-file texi get-string-all)) + + (define matches + (list-matches xref-regexp content)) + + (define translation-map + (fold (match-lambda* + (((msgid . str) result) + (vhash-cons msgid str result))) + vlist-null + translations)) + + (define translated + ;; Iterate over MATCHES and replace cross-references with their + ;; translation found in TRANSLATION-MAP. (We can't use + ;; 'substitute*' because matches can span multiple lines.) + (let loop ((matches matches) + (offset 0) + (result '())) + (match matches + (() + (string-concatenate-reverse + (cons (string-drop content offset) result))) + ((head . tail) + (let ((prefix (match:substring head 1)) + (ref (canonicalize-whitespace (match:substring head 2)))) + (define translated + (string-append "@" (or prefix "") + "ref{" + (match (vhash-assoc ref translation-map) + (#f ref) + ((_ . str) str)))) + + (loop tail + (match:end head) + (append (list translated + (string-take + (string-drop content offset) + (- (match:start head) offset))) + result))))))) + + (format (current-error-port) + "translated ~a cross-references in '~a'~%" + (length matches) texi) + (call-with-output-file texi + (lambda (port) + (display translated port)))) (define* (translate-texi prefix po lang #:key (extras '())) @@ -363,12 +395,9 @@ a list of extra files, such as '(\"contributing\")." (for-each (lambda (file) (let* ((texi (string-append file "." lang ".texi")) (tmp (string-append texi ".tmp"))) - (with-output-to-file texi - (lambda () - (display - (translate-cross-references - (call-with-input-file tmp get-string-all) - translations)))))) + (copy-file tmp texi) + (translate-cross-references texi + translations))) (cons prefix extras)))) (define (available-translations directory domain) |