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authorAndy Wingo <wingo@pobox.com>2012-02-11 18:14:48 +0100
committerAndy Wingo <wingo@pobox.com>2012-02-11 18:14:48 +0100
commita41bed83ab2d2f0bf93c06115c695280d04d13e6 (patch)
treefe300b182a0e4e3fb411cfb67bc2ed05313a11c8 /libguile/read.c
parentbbabae997d7e83e0382d086ce2e0ed82b61c2a7e (diff)
parentc2c3bddb1d0b2180282d78262e84c3ae7a44731f (diff)
downloadguile-a41bed83ab2d2f0bf93c06115c695280d04d13e6.tar.gz
Merge remote-tracking branch 'origin/stable-2.0'
Conflicts: libguile/read.c test-suite/tests/tree-il.test
Diffstat (limited to 'libguile/read.c')
-rw-r--r--libguile/read.c115
1 files changed, 64 insertions, 51 deletions
diff --git a/libguile/read.c b/libguile/read.c
index 7db03417c..7b53bc7fc 100644
--- a/libguile/read.c
+++ b/libguile/read.c
@@ -1,5 +1,5 @@
-/* Copyright (C) 1995,1996,1997,1999,2000,2001,2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
- * Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 1999, 2000, 2001, 2003, 2004, 2006,
+ * 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@@ -142,13 +142,13 @@ SCM_DEFINE (scm_read_options, "read-options-interface", 0, 1, 0,
characters to procedures. */
static SCM *scm_i_read_hash_procedures;
-static inline SCM
+static SCM
scm_i_read_hash_procedures_ref (void)
{
return scm_fluid_ref (*scm_i_read_hash_procedures);
}
-static inline void
+static void
scm_i_read_hash_procedures_set_x (SCM value)
{
scm_fluid_set_x (*scm_i_read_hash_procedures, value);
@@ -197,7 +197,7 @@ scm_i_read_hash_procedures_set_x (SCM value)
|| ((_chr) == 'd') || ((_chr) == 'l'))
/* Read an SCSH block comment. */
-static inline SCM scm_read_scsh_block_comment (scm_t_wchar, SCM);
+static SCM scm_read_scsh_block_comment (scm_t_wchar, SCM);
static SCM scm_read_r6rs_block_comment (scm_t_wchar, SCM);
static SCM scm_read_commented_expression (scm_t_wchar, SCM);
static SCM scm_read_shebang (scm_t_wchar, SCM);
@@ -207,7 +207,7 @@ static SCM scm_get_hash_procedure (int);
result in the pre-allocated buffer BUF. Return zero if the whole token has
fewer than BUF_SIZE bytes, non-zero otherwise. READ will be set the number of
bytes actually read. */
-static inline int
+static int
read_token (SCM port, char *buf, const size_t buf_size, size_t *read)
{
*read = 0;
@@ -286,7 +286,7 @@ read_complete_token (SCM port, char *buffer, const size_t buffer_size,
static int
flush_ws (SCM port, const char *eoferr)
{
- register scm_t_wchar c;
+ scm_t_wchar c;
while (1)
switch (c = scm_getc_unlocked (port))
{
@@ -356,8 +356,16 @@ flush_ws (SCM port, const char *eoferr)
/* Token readers. */
static SCM scm_read_expression (SCM port);
-static SCM scm_read_sharp (int chr, SCM port);
+static SCM scm_read_sharp (int chr, SCM port, long line, int column);
+
+static SCM
+maybe_annotate_source (SCM x, SCM port, long line, int column)
+{
+ if (SCM_RECORD_POSITIONS_P)
+ scm_i_set_source_properties_x (x, line, column, SCM_FILENAME (port));
+ return x;
+}
static SCM
scm_read_sexp (scm_t_wchar chr, SCM port)
@@ -423,10 +431,7 @@ scm_read_sexp (scm_t_wchar chr, SCM port)
}
exit:
- if (SCM_RECORD_POSITIONS_P)
- scm_i_set_source_properties_x (ans, line, column, SCM_FILENAME (port));
-
- return ans;
+ return maybe_annotate_source (ans, port, line, column);
}
#undef FUNC_NAME
@@ -492,6 +497,10 @@ scm_read_string (int chr, SCM port)
unsigned c_str_len = 0;
scm_t_wchar c;
+ /* Need to capture line and column numbers here. */
+ long line = SCM_LINUM (port);
+ int column = SCM_COL (port) - 1;
+
str = scm_i_make_string (READER_STRING_BUFFER_SIZE, NULL, 0);
while ('"' != (c = scm_getc_unlocked (port)))
{
@@ -575,13 +584,8 @@ scm_read_string (int chr, SCM port)
scm_i_string_set_x (str, c_str_len++, c);
scm_i_string_stop_writing ();
}
-
- if (c_str_len > 0)
- {
- return scm_i_substring_copy (str, 0, c_str_len);
- }
-
- return scm_nullstr;
+ return maybe_annotate_source (scm_i_substring_copy (str, 0, c_str_len),
+ port, line, column);
}
#undef FUNC_NAME
@@ -780,10 +784,7 @@ scm_read_quote (int chr, SCM port)
}
p = scm_cons2 (p, scm_read_expression (port), SCM_EOL);
- if (SCM_RECORD_POSITIONS_P)
- scm_i_set_source_properties_x (p, line, column, SCM_FILENAME (port));
-
- return p;
+ return maybe_annotate_source (p, port, line, column);
}
SCM_SYMBOL (sym_syntax, "syntax");
@@ -830,13 +831,10 @@ scm_read_syntax (int chr, SCM port)
}
p = scm_cons2 (p, scm_read_expression (port), SCM_EOL);
- if (SCM_RECORD_POSITIONS_P)
- scm_i_set_source_properties_x (p, line, column, SCM_FILENAME (port));
-
- return p;
+ return maybe_annotate_source (p, port, line, column);
}
-static inline SCM
+static SCM
scm_read_nil (int chr, SCM port)
{
SCM id = scm_read_mixed_case_symbol (chr, port);
@@ -849,7 +847,7 @@ scm_read_nil (int chr, SCM port)
return SCM_ELISP_NIL;
}
-static inline SCM
+static SCM
scm_read_semicolon_comment (int chr, SCM port)
{
int c;
@@ -990,7 +988,7 @@ scm_read_character (scm_t_wchar chr, SCM port)
}
#undef FUNC_NAME
-static inline SCM
+static SCM
scm_read_keyword (int chr, SCM port)
{
SCM symbol;
@@ -1009,24 +1007,35 @@ scm_read_keyword (int chr, SCM port)
return (scm_symbol_to_keyword (symbol));
}
-static inline SCM
-scm_read_vector (int chr, SCM port)
+static SCM
+scm_read_vector (int chr, SCM port, long line, int column)
{
/* Note: We call `scm_read_sexp ()' rather than READER here in order to
guarantee that it's going to do what we want. After all, this is an
implementation detail of `scm_read_vector ()', not a desirable
property. */
- return (scm_vector (scm_read_sexp (chr, port)));
+ return maybe_annotate_source (scm_vector (scm_read_sexp (chr, port)),
+ port, line, column);
}
-static inline SCM
-scm_read_srfi4_vector (int chr, SCM port)
+static SCM
+scm_read_array (int chr, SCM port, long line, int column)
{
- return scm_i_read_array (port, chr);
+ SCM result = scm_i_read_array (port, chr);
+ if (scm_is_false (result))
+ return result;
+ else
+ return maybe_annotate_source (result, port, line, column);
}
static SCM
-scm_read_bytevector (scm_t_wchar chr, SCM port)
+scm_read_srfi4_vector (int chr, SCM port, long line, int column)
+{
+ return scm_read_array (chr, port, line, column);
+}
+
+static SCM
+scm_read_bytevector (scm_t_wchar chr, SCM port, long line, int column)
{
chr = scm_getc_unlocked (port);
if (chr != 'u')
@@ -1040,7 +1049,9 @@ scm_read_bytevector (scm_t_wchar chr, SCM port)
if (chr != '(')
goto syntax;
- return scm_u8_list_to_bytevector (scm_read_sexp (chr, port));
+ return maybe_annotate_source
+ (scm_u8_list_to_bytevector (scm_read_sexp (chr, port)),
+ port, line, column);
syntax:
scm_i_input_error ("read_bytevector", port,
@@ -1050,7 +1061,7 @@ scm_read_bytevector (scm_t_wchar chr, SCM port)
}
static SCM
-scm_read_guile_bit_vector (scm_t_wchar chr, SCM port)
+scm_read_guile_bit_vector (scm_t_wchar chr, SCM port, long line, int column)
{
/* Read the `#*10101'-style read syntax for bit vectors in Guile. This is
terribly inefficient but who cares? */
@@ -1066,10 +1077,12 @@ scm_read_guile_bit_vector (scm_t_wchar chr, SCM port)
if (chr != EOF)
scm_ungetc_unlocked (chr, port);
- return scm_bitvector (scm_reverse_x (s_bits, SCM_EOL));
+ return maybe_annotate_source
+ (scm_bitvector (scm_reverse_x (s_bits, SCM_EOL)),
+ port, line, column);
}
-static inline SCM
+static SCM
scm_read_scsh_block_comment (scm_t_wchar chr, SCM port)
{
int bang_seen = 0;
@@ -1302,7 +1315,7 @@ scm_read_sharp_extension (int chr, SCM port)
/* The reader for the sharp `#' character. It basically dispatches reads
among the above token readers. */
static SCM
-scm_read_sharp (scm_t_wchar chr, SCM port)
+scm_read_sharp (scm_t_wchar chr, SCM port, long line, int column)
#define FUNC_NAME "scm_lreadr"
{
SCM result;
@@ -1318,28 +1331,27 @@ scm_read_sharp (scm_t_wchar chr, SCM port)
case '\\':
return (scm_read_character (chr, port));
case '(':
- return (scm_read_vector (chr, port));
+ return (scm_read_vector (chr, port, line, column));
case 's':
case 'u':
case 'f':
case 'c':
/* This one may return either a boolean or an SRFI-4 vector. */
- return (scm_read_srfi4_vector (chr, port));
+ return (scm_read_srfi4_vector (chr, port, line, column));
case 'v':
- return (scm_read_bytevector (chr, port));
+ return (scm_read_bytevector (chr, port, line, column));
case '*':
- return (scm_read_guile_bit_vector (chr, port));
+ return (scm_read_guile_bit_vector (chr, port, line, column));
case 't':
case 'T':
case 'F':
- /* This one may return either a boolean or an SRFI-4 vector. */
return (scm_read_boolean (chr, port));
case ':':
return (scm_read_keyword (chr, port));
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
case '@':
- return (scm_i_read_array (port, chr));
+ return (scm_read_array (chr, port, line, column));
case 'i':
case 'e':
@@ -1396,7 +1408,7 @@ scm_read_expression (SCM port)
{
while (1)
{
- register scm_t_wchar chr;
+ scm_t_wchar chr;
chr = scm_getc_unlocked (port);
@@ -1422,8 +1434,9 @@ scm_read_expression (SCM port)
return (scm_read_quote (chr, port));
case '#':
{
- SCM result;
- result = scm_read_sharp (chr, port);
+ long line = SCM_LINUM (port);
+ int column = SCM_COL (port) - 1;
+ SCM result = scm_read_sharp (chr, port, line, column);
if (scm_is_eq (result, SCM_UNSPECIFIED))
/* We read a comment or some such. */
break;