mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-04-30 03:40:34 +02:00
Code Activity

Add support for source properties on non-immediate numbers

Browse source 
* libguile/read.c (scm_read_number): Set source properties on
  non-immediate numbers if the 'positions' reader option is set.

* doc/ref/api-debug.texi (Source Properties): Update manual.
This commit is contained in:
Mark H Weaver 2012-02-15 11:47:31 -05:00
parent 32fbc38fbb
commit 38f190749d
2 changed files with 9 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

4
doc/ref/api-debug.texi
View file

@ -239,8 +239,8 @@ Guile's debugger can point back to the file and location where the
expression originated.
The way that source properties are stored means that Guile cannot
associate source properties with individual numbers, symbols,
characters, booleans, or keywords. This can be seen by typing
associate source properties with individual symbols, keywords,
characters, booleans, or small integers. This can be seen by typing
@code{(xxx)} and @code{xxx} at the Guile prompt (where the variable
@code{xxx} has not been defined):

8
libguile/read.c
View file

@ -600,6 +600,10 @@ scm_read_number (scm_t_wchar chr, SCM port)
int overflow;
scm_t_port *pt = SCM_PTAB_ENTRY (port);
/* Need to capture line and column numbers here. */
long line = SCM_LINUM (port);
int column = SCM_COL (port) - 1;
scm_ungetc (chr, port);
overflow = read_complete_token (port, buffer, sizeof (buffer),
&overflow_buffer, &bytes_read);
@ -611,13 +615,15 @@ scm_read_number (scm_t_wchar chr, SCM port)
pt->ilseq_handler);
result = scm_string_to_number (str, SCM_UNDEFINED);
if (!scm_is_true (result))
if (scm_is_false (result))
{
/* Return a symbol instead of a number */
if (SCM_CASE_INSENSITIVE_P)
str = scm_string_downcase_x (str);
result = scm_string_to_symbol (str);
}
else if (SCM_NIMP (result))
result = maybe_annotate_source (result, port, line, column);
if (overflow)
free (overflow_buffer);