--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/format.cpp Sun Mar 30 21:51:23 2014 +0300
@@ -0,0 +1,116 @@
+/*
+ Copyright 2012-2014 Santeri Piippo
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. The name of the author may not be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <cstdio>
+#include "main.h"
+#include "format.h"
+#include "lexer.h"
+
+// =============================================================================
+//
+static void formatError (String fmtstr, const String errdescribe, int pos)
+{
+ fmtstr.replace ("\n", " ");
+ fmtstr.replace ("\t", " ");
+ String errmsg ("With format string:\n" + fmtstr + "\n");
+
+ for (int x = 0; x < pos; ++x)
+ errmsg += "-";
+
+ errmsg += "^\n" + errdescribe;
+ throw std::logic_error (errmsg.stdString());
+}
+
+// =============================================================================
+//
+String formatArgs (const String& fmtstr, const std::vector<String>& args)
+{
+ String fmt = fmtstr;
+ String out;
+ int pos = 0;
+
+ while ((pos = fmt.firstIndexOf ("%", pos)) != -1)
+ {
+ if (fmt[pos + 1] == '%')
+ {
+ fmt.replace (pos, 2, "%");
+ pos++;
+ continue;
+ }
+
+ int ofs = 1;
+ char mod = '\0';
+
+ // handle modifiers
+ if (fmt[pos + ofs] == 's' || fmt[pos + ofs] == 'x' || fmt[pos + ofs] == 'd')
+ {
+ mod = fmt[pos + ofs];
+ ofs++;
+ }
+
+ if (!isdigit (fmt[pos + ofs]))
+ formatError (fmtstr, "bad format string, expected digit with optional "
+ "modifier after '%%'", pos);
+
+ int i = fmt[pos + ofs] - '0';
+
+ if (i > static_cast<signed> (args.size()))
+ formatError (fmtstr, String ("Format argument #") + i + " used but not defined.", pos);
+
+ String replacement = args[i - 1];
+
+ switch (mod)
+ {
+ case 's': replacement = (replacement == "1") ? "" : "s"; break;
+ case 'd': replacement.sprintf ("%d", replacement[0]); break;
+ case 'x': replacement.sprintf ("0x%X", replacement.toLong()); break;
+ default: break;
+ }
+
+ fmt.replace (pos, 1 + ofs, replacement);
+ pos += replacement.length();
+ }
+
+ return fmt;
+}
+
+// =============================================================================
+//
+void error (String msg)
+{
+ Lexer* lx = Lexer::getCurrentLexer();
+ String fileinfo;
+
+ if (lx != null && lx->hasValidToken())
+ {
+ Lexer::TokenInfo* tk = lx->token();
+ fileinfo = format ("%1:%2:%3: ", tk->file, tk->line, tk->column);
+ }
+
+ throw std::runtime_error (fileinfo + msg);
+}