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Commit 2984dad8 authored by wtschueller's avatar wtschueller
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Tcl: support switch command 

--HG--
extra : rebase_source : f516669986006db5aca6af6417f323e57fa848d1
parent 9d24b488
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src/tclscanner.l
View file @ 2984dad8
......@@ -1836,6 +1836,181 @@ D
myScan->ns, myScan->entry_cl, myScan->entry_fn);
}
//! Handle internal tcl commands.
// switch ?options? string pattern body ?pattern body ...?
// switch ?options? string {pattern body ?pattern body ...?}
static void tcl_command_SWITCH()
{
D
tcl_codify_cmd("keyword",0);
tcl_codify_cmd(NULL,1);
tcl_scan *myScan=NULL;
unsigned int i;
QCString token;
// first: find the last option token
unsigned int lastOptionIndex = 0;
for (i = 2; i<tcl.list_commandwords.count(); i += 2)
{
token = (*tcl.list_commandwords.at(i)).utf8();
if (token == "--")
{
lastOptionIndex = i;
break;
}
if (token[0] == '-' && i - lastOptionIndex == 2)
{
// options start with dash and should form a continuous chain
lastOptionIndex = i;
}
}
// second: eat up options
for (i = 2; i <= lastOptionIndex; i++)
{
myScan = tcl_command_ARG(myScan, i, false);
}
// third: how many tokens are left?
if (tcl.list_commandwords.count() - lastOptionIndex == 5)
{
//printf("syntax: switch ?options? string {pattern body ?pattern body ...?}\n");
myScan = tcl_command_ARG(myScan, lastOptionIndex + 1, false);
myScan = tcl_command_ARG(myScan, lastOptionIndex + 2, false);
myScan = tcl_command_ARG(myScan, lastOptionIndex + 3, false);
// walk trough the list step by step
// this way we can preserve whitespace
bool inBraces = false;
bool nextIsPattern = true;
int size;
const char *elem;
const char *next;
token = (*tcl.list_commandwords.at(lastOptionIndex + 4)).utf8();
if (token[0] == '{')
{
inBraces = true;
token = token.mid(1, token.length() - 2);
if (myScan!=NULL)
{
myScan->after << "NULL" << QCString("{");
}
else
{
tcl_codify(NULL,QCString("{"));
}
}
// ToDo: check if multibyte chars are handled correctly
while (token.length() > 0)
{
TclFindElement((const char*)token, token.length(), &elem, &next, &size, NULL);
//printf("%s\nstart=%d, elem=%d, next=%d, size=%d, brace=%d\n",
// (const char*) token, (const char*) token, elem, next, size, brace);
//
// handle leading whitespace/opening brace/double quotes
if (elem - token > 0)
{
if (myScan != NULL)
{
myScan->after << "NULL" << token.left(elem - token);
}
else
{
tcl_codify(NULL, token.left(elem - token));
}
}
// handle actual element without braces/double quotes
if (nextIsPattern)
{
if (myScan != NULL)
{
myScan->after << "NULL" << token.mid(elem - token,size);
}
else
{
tcl_codify(NULL,token.mid(elem - token, size));
}
//printf("pattern=%s\n",(const char*) token.mid(elem - token, size));
}
else {
if (myScan != NULL)
{
myScan->after << "script" << token.mid(elem - token, size);
}
else
{
myScan = tcl.scan.at(0);
myScan = tcl_scan_start('?', token.mid(elem - token, size),
myScan->ns, myScan->entry_cl, myScan->entry_fn);
}
//printf("script =%s\n", (const char*) token.mid(elem - token, size));
}
// handle trailing whitespace/closing brace/double quotes
if (next - elem - size > 0)
{
if (myScan != NULL)
{
myScan->after << "NULL" << token.mid(elem - token + size, next - elem - size);
}
else
{
tcl_codify(NULL, token.mid(elem - token + size, next - elem - size));
}
}
nextIsPattern = !nextIsPattern;
token = token.mid(next - token);
}
if (inBraces)
{
if (myScan != NULL)
{
myScan->after << "NULL" << QCString("}");
}
else
{
tcl_codify(NULL, QCString("}"));
}
}
if (!nextIsPattern)
{
tcl_war("Invalid switch syntax: last token is not a list of even elements.\n");
//tcl_war("%s\n", tcl.list_commandwords.join(" ").ascii());
}
}
else if ((tcl.list_commandwords.count() - lastOptionIndex > 6) &&
((tcl.list_commandwords.count() - lastOptionIndex-3) % 4 == 0))
{
//printf("detected: switch ?options? string pattern body ?pattern body ...?\n");
myScan = tcl_command_ARG(myScan, lastOptionIndex + 1, false);
myScan = tcl_command_ARG(myScan, lastOptionIndex + 2, false);
//printf("value=%s\n",(const char*) (*tcl.list_commandwords.at(lastOptionIndex + 2)).utf8());
for (i = lastOptionIndex + 3; i < tcl.list_commandwords.count(); i += 4)
{
myScan = tcl_command_ARG(myScan, i + 0, false); // whitespace
myScan = tcl_command_ARG(myScan, i + 1, false); // pattern
myScan = tcl_command_ARG(myScan, i + 2, false); // whitespace
if (myScan != NULL) // script
{
myScan->after << "script" << tcl.list_commandwords[i+3];
}
else
{
myScan = tcl.scan.at(0);
myScan = tcl_scan_start('?', *tcl.list_commandwords.at(i+3),
myScan->ns, myScan->entry_cl, myScan->entry_fn);
}
//printf("pattern=%s\n",(const char*) (*tcl.list_commandwords.at(i+1)).utf8());
//printf("script=%s\n",(const char*) (*tcl.list_commandwords.at(i+3)).utf8());
}
}
else
{
// not properly detected syntax
tcl_war("Invalid switch syntax: %d options followed by %d tokens.\n",
lastOptionIndex / 2, (tcl.list_commandwords.count() - 1) / 2 - lastOptionIndex / 2);
for (i = lastOptionIndex + 1; i <= tcl.list_commandwords.count(); i++)
{
myScan = tcl_command_ARG(myScan, i, false);
}
}
}
//! Handle internal tcl commands.
// "catch script ?resultVarName? ?optionsVarName?"
static void tcl_command_CATCH()
......@@ -2494,8 +2669,14 @@ tcl_inf("->\n");
}
/*
* Start of internal tcl keywords
* Ready: eval, catch, if, for, foreach, while
* Ready: switch, eval, catch, if, for, foreach, while
*/
if (myStr=="switch")
{
if (tcl.list_commandwords.count() < 5) {myLine=__LINE__;goto command_warn;}
tcl_command_SWITCH();
goto command_end;
}
if (myStr=="eval")
{
if (tcl.list_commandwords.count() < 3) {myLine=__LINE__;goto command_warn;}
......
testing/060/060__command__switch_8tcl.xml 0 → 100644
View file @ 2984dad8
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<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
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<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
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<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
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<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
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<briefdescription>
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<detaileddescription>
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<inbodydescription>
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<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1a2aaa92757686acea102cba3475f0c13b" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
<definition>j</definition>
<argsstring>args</argsstring>
<name>j</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="060_command_switch.tcl" bodystart="95" bodyend="106"/>
<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1a20363f854eb4098a446733d63d34dbc1" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
<definition>k</definition>
<argsstring>args</argsstring>
<name>k</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="060_command_switch.tcl" bodystart="107" bodyend="118"/>
<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1aff56f84b49947b84b2a304f51cf8e678" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
<definition>l</definition>
<argsstring>args</argsstring>
<name>l</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="060_command_switch.tcl" bodystart="119" bodyend="129"/>
<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1a78d127e8bda64d4471ac811ad512fbd9" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
<definition>m</definition>
<argsstring>args</argsstring>
<name>m</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="060_command_switch.tcl" bodystart="130" bodyend="141"/>
<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1acdde3cd86eb2421ce8dbb2e85227d368" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
<definition>n</definition>
<argsstring>args</argsstring>
<name>n</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="060_command_switch.tcl" bodystart="142" bodyend="153"/>
<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1a495e7a4ede0831107e9d435080a7c268" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
<definition>o</definition>
<argsstring>args</argsstring>
<name>o</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
</inbodydescription>
<location file="060_command_switch.tcl" bodystart="154" bodyend="165"/>
<references refid="060__command__switch_8tcl_1aa889853547f65a22ae133cd57ff89601" compoundref="060__command__switch_8tcl" startline="10" endline="13">Invoked</references>
</memberdef>
<memberdef kind="function" id="060__command__switch_8tcl_1a15229b450f26d8fa1c10bea4f3279f4d" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
<type/>
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<argsstring>args</argsstring>
<name>p</name>
<briefdescription>
</briefdescription>
<detaileddescription>
</detaileddescription>
<inbodydescription>
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testing/060_command_switch.tcl 0 → 100644
View file @ 2984dad8
#// objective: tests processing of switch, only references/referencedby relations are relevant
#// check: 060__command__switch_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
}
#
# switch command
# switch ?options? string pattern body ?pattern body ...?
proc b args {
switch value NotInvoked {
} NotInvoked {
} default {
Invoked
}
return
}
proc c args {
switch value NotInvoked {
} [Invoked] {
} default {
}
return
}
proc d args {
switch NotInvoked pattern {
} [Invoked] {
} default {
}
return
}
proc e args {
switch [Invoked] pattern {
} NotInvoked {
} default {
}
return
}
proc f args {
switch -exact value pattern {
} NotInvoked {
} default {
Invoked
}
return
}
proc g args {
switch -exact -- value pattern {
} NotInvoked {
} default {
Invoked
}
return
}
proc h args {
switch -exact -- -value pattern {
} NotInvoked {
} default {
Invoked
}
return
}
# switch ?options? string {pattern body ?pattern body ...?}
proc i args {
switch value {
NotInvoked {
}
NotInvoked {
}
default {
Invoked
}
}
return
}
proc j args {
switch vale {
NotInvoked {
}
[NotInvoked] {
}
default {
Invoked
}
}
return
}
proc k args {
switch NotInvoked {
[NotInvoked] {
}
NotInvoked {
Invoked
}
default {
}
}
return
}
proc l args {
switch [Invoked] {
pattern {
}
NotInvoked {
}
default {
}
}
return
}
proc m args {
switch -exact value {
pattern {
}
NotInvoked {
}
default {
Invoked
}
}
return
}
proc n args {
switch -exact -- value {
pattern {
}
NotInvoked {
}
default {
Invoked
}
}
return
}
proc o args {
switch -exact -- -value {
pattern {
}
NotInvoked {
}
default {
Invoked
}
}
return
}
proc p args {
switch -exact -- inquotes {
"inquotes" {
Invoked
}
default {
}
}
return
}
proc q args {
switch -exact -- "in quotes" {
"in quotes" {
Invoked
}
default {
}
}
return
}
proc r args {
switch -exact -- inbraces {
{inbraces} {
Invoked
}
default {
}
}
return
}
proc s args {
switch -exact -- {in braces} {
{in braces} {
Invoked
}
default {
}
}
return
}
# wrong syntax
proc x args {
catch {switch -exact -- [Invoked] pattern1 NotInvoked pattern2}
return
}
# The current version does not check the last argument beforehand.
# Therefore, all script elements are evaluated as scripts before
# the parser detects the dangling pattern. It throws a warning, at the very least.
# Anyway, for working code the documentation will be correct.
proc y args {
catch {switch -exact -- [Invoked] {
pattern {
NotInvoked
}
NotInvoked {
NotInvoked
}
default {
NotInvoked
}
pattern
}}
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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