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authorMichael Snyder <msnyder@specifix.com>2010-12-31 22:59:51 +0000
committerMichael Snyder <msnyder@specifix.com>2010-12-31 22:59:51 +0000
commit4b1d7842adfc9887086cea526e5ca5e923e48422 (patch)
tree111d3852e82a916629399ffd1587ed51e587b009 /gdb/completer.c
parent063d51569a462844484401166c2fb3a46691668a (diff)
downloadgdb-4b1d7842adfc9887086cea526e5ca5e923e48422.tar.gz
2010-12-31 Michael Snyder <msnyder@vmware.com>
* charset.c: Comment cleanup and long line wrapping. * charset.h: Ditto. * c-lang.c: Ditto. * c-lang.h: Ditto. * coff-pe-read.c: Ditto. * coff-pe-read.h: Ditto. * coffread.c: Ditto. * command.h: Ditto. * complaints.c: Ditto. * complaints.h: Ditto. * completer.c: Ditto. * completer.h: Ditto. * corefile.c: Ditto. * corelow.c: Ditto. * core-regset.c: Ditto. * cp-abi.c: Ditto. * cp-abi.h: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * cp-support.h: Ditto. * cp-valprint.c: Ditto. * cp-typeprint.c: Ditto. * c-valprint.c: Ditto.
Diffstat (limited to 'gdb/completer.c')
-rw-r--r--gdb/completer.c193
1 files changed, 106 insertions, 87 deletions
diff --git a/gdb/completer.c b/gdb/completer.c
index 5d0898d04c5..3a4f9d8c272 100644
--- a/gdb/completer.c
+++ b/gdb/completer.c
@@ -50,21 +50,22 @@ char *line_completion_function (const char *text, int matches,
/* readline uses the word breaks for two things:
(1) In figuring out where to point the TEXT parameter to the
rl_completion_entry_function. Since we don't use TEXT for much,
- it doesn't matter a lot what the word breaks are for this purpose, but
- it does affect how much stuff M-? lists.
+ it doesn't matter a lot what the word breaks are for this purpose,
+ but it does affect how much stuff M-? lists.
(2) If one of the matches contains a word break character, readline
will quote it. That's why we switch between
current_language->la_word_break_characters() and
gdb_completer_command_word_break_characters. I'm not sure when
- we need this behavior (perhaps for funky characters in C++ symbols?). */
+ we need this behavior (perhaps for funky characters in C++
+ symbols?). */
/* Variables which are necessary for fancy command line editing. */
/* When completing on command names, we remove '-' from the list of
word break characters, since we use it in command names. If the
readline library sees one in any of the current completion strings,
- it thinks that the string needs to be quoted and automatically supplies
- a leading quote. */
+ it thinks that the string needs to be quoted and automatically
+ supplies a leading quote. */
static char *gdb_completer_command_word_break_characters =
" \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,";
@@ -80,9 +81,9 @@ static char *gdb_completer_file_name_break_characters = " \t\n*|\"';?><@";
static char *gdb_completer_file_name_break_characters = " \t\n*|\"';:?><";
#endif
-/* Characters that can be used to quote completion strings. Note that we
- can't include '"' because the gdb C parser treats such quoted sequences
- as strings. */
+/* Characters that can be used to quote completion strings. Note that
+ we can't include '"' because the gdb C parser treats such quoted
+ sequences as strings. */
static char *gdb_completer_quote_characters = "'";
/* Accessor for some completer data that may interest other files. */
@@ -98,20 +99,23 @@ get_gdb_completer_quote_characters (void)
char *
readline_line_completion_function (const char *text, int matches)
{
- return line_completion_function (text, matches, rl_line_buffer, rl_point);
+ return line_completion_function (text, matches,
+ rl_line_buffer, rl_point);
}
-/* This can be used for functions which don't want to complete on symbols
- but don't want to complete on anything else either. */
+/* This can be used for functions which don't want to complete on
+ symbols but don't want to complete on anything else either. */
char **
-noop_completer (struct cmd_list_element *ignore, char *text, char *prefix)
+noop_completer (struct cmd_list_element *ignore,
+ char *text, char *prefix)
{
return NULL;
}
/* Complete on filenames. */
char **
-filename_completer (struct cmd_list_element *ignore, char *text, char *word)
+filename_completer (struct cmd_list_element *ignore,
+ char *text, char *word)
{
int subsequent_name;
char **return_val;
@@ -142,12 +146,12 @@ filename_completer (struct cmd_list_element *ignore, char *text, char *word)
break;
}
/* We need to set subsequent_name to a non-zero value before the
- continue line below, because otherwise, if the first file seen
- by GDB is a backup file whose name ends in a `~', we will loop
- indefinitely. */
+ continue line below, because otherwise, if the first file
+ seen by GDB is a backup file whose name ends in a `~', we
+ will loop indefinitely. */
subsequent_name = 1;
- /* Like emacs, don't complete on old versions. Especially useful
- in the "source" command. */
+ /* Like emacs, don't complete on old versions. Especially
+ useful in the "source" command. */
if (p[strlen (p) - 1] == '~')
{
xfree (p);
@@ -177,9 +181,9 @@ filename_completer (struct cmd_list_element *ignore, char *text, char *word)
}
}
#if 0
- /* There is no way to do this just long enough to affect quote inserting
- without also affecting the next completion. This should be fixed in
- readline. FIXME. */
+ /* There is no way to do this just long enough to affect quote
+ inserting without also affecting the next completion. This
+ should be fixed in readline. FIXME. */
/* Ensure that readline does the right thing
with respect to inserting quotes. */
rl_completer_word_break_characters = "";
@@ -193,9 +197,12 @@ filename_completer (struct cmd_list_element *ignore, char *text, char *word)
or
symbol+offset
- This is intended to be used in commands that set breakpoints etc. */
+ This is intended to be used in commands that set breakpoints
+ etc. */
+
char **
-location_completer (struct cmd_list_element *ignore, char *text, char *word)
+location_completer (struct cmd_list_element *ignore,
+ char *text, char *word)
{
int n_syms = 0, n_files = 0;
char ** fn_list = NULL;
@@ -386,13 +393,14 @@ add_struct_fields (struct type *type, int *nextp, char **output,
for (i = 0; i < TYPE_NFIELDS (type); ++i)
{
if (i < TYPE_N_BASECLASSES (type))
- add_struct_fields (TYPE_BASECLASS (type, i), nextp, output,
- fieldname, namelen);
+ add_struct_fields (TYPE_BASECLASS (type, i), nextp,
+ output, fieldname, namelen);
else if (TYPE_FIELD_NAME (type, i))
{
if (TYPE_FIELD_NAME (type, i)[0] != '\0')
{
- if (! strncmp (TYPE_FIELD_NAME (type, i), fieldname, namelen))
+ if (! strncmp (TYPE_FIELD_NAME (type, i),
+ fieldname, namelen))
{
output[*nextp] = xstrdup (TYPE_FIELD_NAME (type, i));
++*nextp;
@@ -401,8 +409,8 @@ add_struct_fields (struct type *type, int *nextp, char **output,
else if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_UNION)
{
/* Recurse into anonymous unions. */
- add_struct_fields (TYPE_FIELD_TYPE (type, i), nextp, output,
- fieldname, namelen);
+ add_struct_fields (TYPE_FIELD_TYPE (type, i), nextp,
+ output, fieldname, namelen);
}
}
}
@@ -432,7 +440,8 @@ add_struct_fields (struct type *type, int *nextp, char **output,
names, but some language parsers also have support for completing
field names. */
char **
-expression_completer (struct cmd_list_element *ignore, char *text, char *word)
+expression_completer (struct cmd_list_element *ignore,
+ char *text, char *word)
{
struct type *type = NULL;
char *fieldname, *p;
@@ -481,12 +490,13 @@ expression_completer (struct cmd_list_element *ignore, char *text, char *word)
p--)
;
- /* Not ideal but it is what we used to do before... */
+ /* Not ideal but it is what we used to do before... */
return location_completer (ignore, p, word);
}
-/* Here are some useful test cases for completion. FIXME: These should
- be put in the test suite. They should be tested with both M-? and TAB.
+/* Here are some useful test cases for completion. FIXME: These
+ should be put in the test suite. They should be tested with both
+ M-? and TAB.
"show output-" "radix"
"show output" "-radix"
@@ -521,18 +531,18 @@ complete_line_internal_reason;
TEXT is the caller's idea of the "word" we are looking at.
- LINE_BUFFER is available to be looked at; it contains the entire text
- of the line. POINT is the offset in that line of the cursor. You
- should pretend that the line ends at POINT.
+ LINE_BUFFER is available to be looked at; it contains the entire
+ text of the line. POINT is the offset in that line of the cursor.
+ You should pretend that the line ends at POINT.
REASON is of type complete_line_internal_reason.
If REASON is handle_brkchars:
- Preliminary phase, called by gdb_completion_word_break_characters function,
- is used to determine the correct set of chars that are word delimiters
- depending on the current command in line_buffer.
- No completion list should be generated; the return value should be NULL.
- This is checked by an assertion in that function.
+ Preliminary phase, called by gdb_completion_word_break_characters
+ function, is used to determine the correct set of chars that are
+ word delimiters depending on the current command in line_buffer.
+ No completion list should be generated; the return value should be
+ NULL. This is checked by an assertion in that function.
If REASON is handle_completions:
Main phase, called by complete_line function, is used to get the list
@@ -544,7 +554,8 @@ complete_line_internal_reason;
*/
static char **
-complete_line_internal (const char *text, char *line_buffer, int point,
+complete_line_internal (const char *text,
+ char *line_buffer, int point,
complete_line_internal_reason reason)
{
char **list = NULL;
@@ -553,16 +564,18 @@ complete_line_internal (const char *text, char *line_buffer, int point,
char *word;
struct cmd_list_element *c, *result_list;
- /* Choose the default set of word break characters to break completions.
- If we later find out that we are doing completions on command strings
- (as opposed to strings supplied by the individual command completer
- functions, which can be any string) then we will switch to the
- special word break set for command strings, which leaves out the
- '-' character used in some commands. */
+ /* Choose the default set of word break characters to break
+ completions. If we later find out that we are doing completions
+ on command strings (as opposed to strings supplied by the
+ individual command completer functions, which can be any string)
+ then we will switch to the special word break set for command
+ strings, which leaves out the '-' character used in some
+ commands. */
rl_completer_word_break_characters =
current_language->la_word_break_characters();
- /* Decide whether to complete on a list of gdb commands or on symbols. */
+ /* Decide whether to complete on a list of gdb commands or on
+ symbols. */
tmp_command = (char *) alloca (point + 1);
p = tmp_command;
@@ -642,12 +655,13 @@ complete_line_internal (const char *text, char *line_buffer, int point,
if (p == tmp_command + point)
{
- /* There is no non-whitespace in the line beyond the command. */
+ /* There is no non-whitespace in the line beyond the
+ command. */
if (p[-1] == ' ' || p[-1] == '\t')
{
- /* The command is followed by whitespace; we need to complete
- on whatever comes after command. */
+ /* The command is followed by whitespace; we need to
+ complete on whatever comes after command. */
if (c->prefixlist)
{
/* It is a prefix command; what comes after it is
@@ -708,7 +722,7 @@ complete_line_internal (const char *text, char *line_buffer, int point,
else
{
/* The command is not followed by whitespace; we need to
- complete on the command itself. e.g. "p" which is a
+ complete on the command itself, e.g. "p" which is a
command itself but also can complete to "print", "ptype"
etc. */
char *q;
@@ -758,7 +772,8 @@ complete_line_internal (const char *text, char *line_buffer, int point,
of file-name completion. */
for (p = word;
p > tmp_command
- && strchr (gdb_completer_file_name_break_characters, p[-1]) == NULL;
+ && strchr (gdb_completer_file_name_break_characters,
+ p[-1]) == NULL;
p--)
;
rl_completer_word_break_characters =
@@ -786,8 +801,8 @@ complete_line_internal (const char *text, char *line_buffer, int point,
TEXT is the caller's idea of the "word" we are looking at.
- LINE_BUFFER is available to be looked at; it contains the entire text
- of the line.
+ LINE_BUFFER is available to be looked at; it contains the entire
+ text of the line.
POINT is the offset in that line of the cursor. You
should pretend that the line ends at POINT. */
@@ -795,14 +810,17 @@ complete_line_internal (const char *text, char *line_buffer, int point,
char **
complete_line (const char *text, char *line_buffer, int point)
{
- return complete_line_internal (text, line_buffer, point, handle_completions);
+ return complete_line_internal (text, line_buffer,
+ point, handle_completions);
}
/* Complete on command names. Used by "help". */
char **
-command_completer (struct cmd_list_element *ignore, char *text, char *word)
+command_completer (struct cmd_list_element *ignore,
+ char *text, char *word)
{
- return complete_line_internal (word, text, strlen (text), handle_help);
+ return complete_line_internal (word, text,
+ strlen (text), handle_help);
}
/* Get the list of chars that are considered as word breaks
@@ -819,26 +837,26 @@ gdb_completion_word_break_characters (void)
return rl_completer_word_break_characters;
}
-/* Generate completions one by one for the completer. Each time we are
- called return another potential completion to the caller.
- line_completion just completes on commands or passes the buck to the
- command's completer function, the stuff specific to symbol completion
- is in make_symbol_completion_list.
+/* Generate completions one by one for the completer. Each time we
+ are called return another potential completion to the caller.
+ line_completion just completes on commands or passes the buck to
+ the command's completer function, the stuff specific to symbol
+ completion is in make_symbol_completion_list.
TEXT is the caller's idea of the "word" we are looking at.
- MATCHES is the number of matches that have currently been collected from
- calling this completion function. When zero, then we need to initialize,
- otherwise the initialization has already taken place and we can just
- return the next potential completion string.
+ MATCHES is the number of matches that have currently been collected
+ from calling this completion function. When zero, then we need to
+ initialize, otherwise the initialization has already taken place
+ and we can just return the next potential completion string.
- LINE_BUFFER is available to be looked at; it contains the entire text
- of the line. POINT is the offset in that line of the cursor. You
- should pretend that the line ends at POINT.
+ LINE_BUFFER is available to be looked at; it contains the entire
+ text of the line. POINT is the offset in that line of the cursor.
+ You should pretend that the line ends at POINT.
- Returns NULL if there are no more completions, else a pointer to a string
- which is a possible completion, it is the caller's responsibility to
- free the string. */
+ Returns NULL if there are no more completions, else a pointer to a
+ string which is a possible completion, it is the caller's
+ responsibility to free the string. */
static char *
line_completion_function (const char *text, int matches,
@@ -850,15 +868,16 @@ line_completion_function (const char *text, int matches,
if (matches == 0)
{
- /* The caller is beginning to accumulate a new set of completions, so
- we need to find all of them now, and cache them for returning one at
- a time on future calls. */
+ /* The caller is beginning to accumulate a new set of
+ completions, so we need to find all of them now, and cache
+ them for returning one at a time on future calls. */
if (list)
{
- /* Free the storage used by LIST, but not by the strings inside.
- This is because rl_complete_internal () frees the strings.
- As complete_line may abort by calling `error' clear LIST now. */
+ /* Free the storage used by LIST, but not by the strings
+ inside. This is because rl_complete_internal () frees
+ the strings. As complete_line may abort by calling
+ `error' clear LIST now. */
xfree (list);
list = NULL;
}
@@ -866,11 +885,11 @@ line_completion_function (const char *text, int matches,
list = complete_line (text, line_buffer, point);
}
- /* If we found a list of potential completions during initialization then
- dole them out one at a time. The vector of completions is NULL
- terminated, so after returning the last one, return NULL (and continue
- to do so) each time we are called after that, until a new list is
- available. */
+ /* If we found a list of potential completions during initialization
+ then dole them out one at a time. The vector of completions is
+ NULL terminated, so after returning the last one, return NULL
+ (and continue to do so) each time we are called after that, until
+ a new list is available. */
if (list)
{
@@ -885,8 +904,8 @@ line_completion_function (const char *text, int matches,
/* Can't do this because readline hasn't yet checked the word breaks
for figuring out whether to insert a quote. */
if (output == NULL)
- /* Make sure the word break characters are set back to normal for the
- next time that readline tries to complete something. */
+ /* Make sure the word break characters are set back to normal for
+ the next time that readline tries to complete something. */
rl_completer_word_break_characters =
current_language->la_word_break_characters();
#endif
@@ -926,7 +945,7 @@ skip_quoted_chars (char *str, char *quotechars, char *breakchars)
}
else if (strchr (quotechars, *scan))
{
- /* Found start of a quoted string. */
+ /* Found start of a quoted string. */
quote_char = *scan;
}
else if (strchr (breakchars, *scan))