Commit 9d24b488 authored by wtschueller's avatar wtschueller

Tcl: support eval/catch commands

--HG--
extra : rebase_source : 5d7e3a2b3c549419c672cddd8d780542053d68bb
parent 3d05cb6d
...@@ -1816,6 +1816,42 @@ static tcl_scan *tcl_command_ARG(tcl_scan *myScan, unsigned int i, bool ignoreOu ...@@ -1816,6 +1816,42 @@ static tcl_scan *tcl_command_ARG(tcl_scan *myScan, unsigned int i, bool ignoreOu
return (myScan); return (myScan);
} }
//! Handle internal tcl commands.
// "eval arg ?arg ...?"
static void tcl_command_EVAL()
{
D
tcl_codify_cmd("keyword", 0);
tcl_scan *myScan = tcl.scan.at(0);
QCString myString = "";
// we simply rescan the line without the eval
// we include leading whitespace because tcl_scan_start will examine
// the first char. If it finds a bracket it will assume one expression in brackets.
// Example: eval [list set] [list NotInvoked] [Invoked NotInvoked]
for (unsigned int i = 1; i < tcl.list_commandwords.count(); i++)
{
myString += (*tcl.list_commandwords.at(i)).utf8();
}
myScan = tcl_scan_start('?', myString,
myScan->ns, myScan->entry_cl, myScan->entry_fn);
}
//! Handle internal tcl commands.
// "catch script ?resultVarName? ?optionsVarName?"
static void tcl_command_CATCH()
{
D
tcl_codify_cmd("keyword", 0);
tcl_codify_cmd(NULL, 1);
tcl_scan *myScan = tcl.scan.at(0);
myScan = tcl_scan_start('?', *tcl.list_commandwords.at(2),
myScan->ns, myScan->entry_cl, myScan->entry_fn);
for (unsigned int i = 3; i < tcl.list_commandwords.count(); i++)
{
myScan = tcl_command_ARG(myScan, i, false);
}
}
//! Handle internal tcl commands. //! Handle internal tcl commands.
// "if expr1 ?then? body1 elseif expr2 ?then? body2 elseif ... ?else? ?bodyN?" // "if expr1 ?then? body1 elseif expr2 ?then? body2 elseif ... ?else? ?bodyN?"
static void tcl_command_IF(QStringList type) static void tcl_command_IF(QStringList type)
...@@ -2458,9 +2494,20 @@ tcl_inf("->\n"); ...@@ -2458,9 +2494,20 @@ tcl_inf("->\n");
} }
/* /*
* Start of internal tcl keywords * Start of internal tcl keywords
* Ready: if, for, foreach, while * Ready: eval, catch, if, for, foreach, while
* TODO: switch, eval, ?
*/ */
if (myStr=="eval")
{
if (tcl.list_commandwords.count() < 3) {myLine=__LINE__;goto command_warn;}
tcl_command_EVAL();
goto command_end;
}
if (myStr=="catch")
{
if (tcl.list_commandwords.count() < 3) {myLine=__LINE__;goto command_warn;}
tcl_command_CATCH();
goto command_end;
}
if (myStr=="for") if (myStr=="for")
{ {
if (tcl.list_commandwords.count() != 9) {myLine=__LINE__;goto command_warn;} if (tcl.list_commandwords.count() != 9) {myLine=__LINE__;goto command_warn;}
......
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#// objective: tests processing of catch/eval, only references/referencedby relations are relevant
#// check: 059__command__catch_8tcl.xml
#// config: REFERENCED_BY_RELATION = yes
#// config: REFERENCES_RELATION = yes
#// config: EXTRACT_ALL = yes
#// config: INLINE_SOURCES = no
##
# \brief should be reference by every proc below
proc Invoked args {
puts "Procedure \"Invoked\" is invoked indeed. Ok."
return $args
}
##
# \brief must not be reference by every proc below
proc NotInvoked args {
puts "Procedure \"NotInvoked\" is invoked. Not Ok!"
return $args
}
#
# check if call references work at all
proc a args {
Invoked NotInvoked
return
}
#
# catch command
# Tcl8.5: catch script ?resultVarName? ?optionsVarName?
proc b args {
catch Invoked
return
}
proc c args {
catch Invoked NotInvoked
return
}
proc d args {
catch Invoked NotInvoked NotInvoked
return
}
proc e args {
set r [catch Invoked NotInvoked NotInvoked]
return
}
proc f args {
set r [catch {Invoked} NotInvoked NotInvoked]
return
}
proc g args {
set r [catch {
set x [Invoked]
} NotInvoked NotInvoked]
return
}
# eval arg ?arg ...?
proc h args {
eval Invoked NotInvoked
return
}
proc i args {
eval set NotInvoked [Invoked NotInvoked]
return
}
# This is a striped down example. Original:
#
# jpeg.tcl --
#
# Querying and modifying JPEG image files.
#
# Copyright (c) 2004 Aaron Faupell <afaupell@users.sourceforge.net>
#
# ...
# eval [list addComment $file] [lreplace $com 0 0 $comment]
# ...
proc j args {
eval [list set] [list NotInvoked] [Invoked NotInvoked]
return
}
#
# call all single letter procs
# let tcl check what is called and what is not called
foreach p [info procs ?] {
puts "Check procedure \"$p\""
$p
}
exit
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