mirror of
https://github.com/ChronosX88/psyced.git
synced 2024-11-10 04:21:02 +00:00
89 lines
2.9 KiB
Diff
89 lines
2.9 KiB
Diff
This patch is necessary to apply to the Pike language source code to teach it
|
|
to not complain so much about LPC code in an #ifndef __PIKE__ part. So this
|
|
is necessary before you can try out the bin/psyked experiment to use psyced
|
|
code in pike.
|
|
|
|
You would think the preprocessor ignores anything that is not __PIKE__, but
|
|
Pike's preprocessor doesn't do that very well. To change that completely is
|
|
hard to achieve and would not be backward compatible to the custom extensions
|
|
that have been added to Pike.
|
|
|
|
Therefore this patch gently teaches Pike to deal with a few LPC specific things:
|
|
|
|
* LPC's #'lambda closure syntax is dealt as if the #' wasn't there. This means
|
|
that the code will not trigger errors when ifdef'd out. In some cases it may
|
|
even produce useful Pike code, as in the case of a #'callback function.
|
|
|
|
* Pike will not break on LPC's #include MACRO capability. Would be even better
|
|
if Pike learned to support this syntax:
|
|
#define CONFIG_PATH "/my/filesystem/is/not/like/yours/"
|
|
#include CONFIG_PATH "myconfig.h"
|
|
|
|
* In LPC, #echo allows to quickly put a compile-time debug message into the code
|
|
to figure out if ifdefs are properly set. Something like:
|
|
#echo Warning: LPC version probably too old!
|
|
This patch teaches Pike to ignore #echo statements. Would be better to
|
|
support them.
|
|
|
|
|
|
|
|
|
|
--- preprocessor.h-orig 2007-09-04 22:56:07.002487000 +0200
|
|
+++ preprocessor.h 2007-09-16 19:15:32.179227455 +0200
|
|
@@ -1407,6 +1407,15 @@
|
|
|
|
switch(data[pos])
|
|
{
|
|
+ case '\'':
|
|
+ /*
|
|
+ * deal with LPC lambda syntax: skip the #' in #'<token>
|
|
+ * this makes function pointers syntax compatible, and allows other
|
|
+ * lambda statements to exist in an #ifndef __PIKE__ area.
|
|
+ * healthy for writing code that runs on both LPC and pike. --lynX
|
|
+ */
|
|
+ pos++;
|
|
+ break;
|
|
case 'l':
|
|
{
|
|
static WCHAR line_[] = { 'l', 'i', 'n', 'e' };
|
|
@@ -1568,7 +1577,12 @@
|
|
}
|
|
|
|
default:
|
|
- cpp_error(this, "Expected file to include.");
|
|
+ /* used to complain about LPC's macro #include syntax
|
|
+ * even when in an #ifndef __PIKE__ zone. this is a
|
|
+ * clear case where pike should mind its own business.
|
|
+ * luckily an if is enough. --lynX
|
|
+ */
|
|
+ if (OUTP()) cpp_error(this, "Expected file to include.");
|
|
break;
|
|
}
|
|
|
|
@@ -1799,6 +1813,7 @@
|
|
static WCHAR elseif_[] = { 'e', 'l', 's', 'e', 'i', 'f' };
|
|
static WCHAR elif_[] = { 'e', 'l', 'i', 'f' };
|
|
static WCHAR error_[] = { 'e', 'r', 'r', 'o', 'r' };
|
|
+ static WCHAR echo_[] = { 'e', 'c', 'h', 'o' };
|
|
|
|
if(WGOBBLE2(endif_))
|
|
{
|
|
@@ -1869,6 +1884,17 @@
|
|
break;
|
|
}
|
|
|
|
+ /* very rudimentary implementation of the LPC #echo directive:
|
|
+ * just skip it quietly. would be better to output it when OUTP()
|
|
+ * but doing so looks like more work than I am willing to invest
|
|
+ * right now.. --lynX
|
|
+ */
|
|
+ if(WGOBBLE2(echo_)) {
|
|
+ SKIPSPACE();
|
|
+ FIND_EOL();
|
|
+ break;
|
|
+ }
|
|
+
|
|
if(WGOBBLE2(error_))
|
|
{
|
|
ptrdiff_t foo;
|