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Have `read' update line/column numbers when reading SCSH block comments.

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* libguile/read.c (scm_read_scsh_block_comment): Use `scm_getc' instead
  of `scm_get_byte_or_eof'.

* test-suite/tests/reader.test ("read-options")["position of SCSH block
  comment"]: New test.
This commit is contained in:
Ludovic Courtès 2011-02-28 23:33:47 +01:00
parent ac012a27a2
commit 58b1db5f24
2 changed files with 12 additions and 5 deletions
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6
libguile/read.c
View file

@ -1116,13 +1116,9 @@ scm_read_scsh_block_comment (scm_t_wchar chr, SCM port)
{
int bang_seen = 0;
/* We can use the get_byte here because there is no need to get the
locale correct when reading comments. This presumes that
hash and exclamation points always represent themselves no
matter what the source encoding is.*/
for (;;)
{
int c = scm_get_byte_or_eof (port);
int c = scm_getc (port);
if (c == EOF)
scm_i_input_error ("skip_block_comment", port,

11
test-suite/tests/reader.test
View file

@ -253,6 +253,14 @@
(read-string "'abcde")))))
(and (equal? (source-property sexp 'line) 0)
(equal? (source-property sexp 'column) 0))))
(pass-if "position of SCSH block comment"
;; In Guile 2.0.0 the reader would not update the port's position
;; when reading an SCSH block comment.
(let ((sexp (with-read-options '(positions)
(lambda ()
(read-string "#!foo\nbar\nbaz\n!#\n(hello world)\n")))))
(= 4 (source-property sexp 'line))))
(with-test-prefix "r6rs-hex-escapes"
(pass-if-exception "non-hex char in two-digit hex-escape"
exception:illegal-escape
@ -417,3 +425,6 @@
("#,@foo" . (unsyntax-splicing foo)))))
;;; Local Variables:
;;; eval: (put 'with-read-options 'scheme-indent-function 1)
;;; End: