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authorDiegoisawesome <Diegoisawesome@users.noreply.github.com>2019-08-15 16:42:37 -0500
committerGitHub <noreply@github.com>2019-08-15 16:42:37 -0500
commite751d33afb9410d63fc7b5c8da211a8d62eaeb21 (patch)
tree016da807f9f85a9dad91c1b091295d5c68375701 /tools/preproc/preproc.cpp
parenta5d8669840e5cb411f03929118608cb79ee026ad (diff)
parentf3bd844f5622fad017d1752734ab1e128006ea7b (diff)
Merge pull request #16 from PikalaxALT/master
Update binaries again; add build and install scripts
Diffstat (limited to 'tools/preproc/preproc.cpp')
-rw-r--r--tools/preproc/preproc.cpp156
1 files changed, 156 insertions, 0 deletions
diff --git a/tools/preproc/preproc.cpp b/tools/preproc/preproc.cpp
new file mode 100644
index 0000000..c9c6042
--- /dev/null
+++ b/tools/preproc/preproc.cpp
@@ -0,0 +1,156 @@
+// Copyright(c) 2016 YamaArashi
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#include <string>
+#include <stack>
+#include "preproc.h"
+#include "asm_file.h"
+#include "c_file.h"
+#include "charmap.h"
+
+Charmap* g_charmap;
+
+void PrintAsmBytes(unsigned char *s, int length)
+{
+ if (length > 0)
+ {
+ std::printf("\t.byte ");
+ for (int i = 0; i < length; i++)
+ {
+ std::printf("0x%02X", s[i]);
+
+ if (i < length - 1)
+ std::printf(", ");
+ }
+ std::putchar('\n');
+ }
+}
+
+void PreprocAsmFile(std::string filename)
+{
+ std::stack<AsmFile> stack;
+
+ stack.push(AsmFile(filename));
+
+ for (;;)
+ {
+ while (stack.top().IsAtEnd())
+ {
+ stack.pop();
+
+ if (stack.empty())
+ return;
+ else
+ stack.top().OutputLocation();
+ }
+
+ Directive directive = stack.top().GetDirective();
+
+ switch (directive)
+ {
+ case Directive::Include:
+ stack.push(AsmFile(stack.top().ReadPath()));
+ stack.top().OutputLocation();
+ break;
+ case Directive::String:
+ {
+ unsigned char s[kMaxStringLength];
+ int length = stack.top().ReadString(s);
+ PrintAsmBytes(s, length);
+ break;
+ }
+ case Directive::Braille:
+ {
+ unsigned char s[kMaxStringLength];
+ int length = stack.top().ReadBraille(s);
+ PrintAsmBytes(s, length);
+ break;
+ }
+ case Directive::Unknown:
+ {
+ std::string globalLabel = stack.top().GetGlobalLabel();
+
+ if (globalLabel.length() != 0)
+ {
+ const char *s = globalLabel.c_str();
+ std::printf("%s: ; .global %s\n", s, s);
+ }
+ else
+ {
+ stack.top().OutputLine();
+ }
+
+ break;
+ }
+ }
+ }
+}
+
+void PreprocCFile(std::string filename)
+{
+ CFile cFile(filename);
+ cFile.Preproc();
+}
+
+char* GetFileExtension(char* filename)
+{
+ char* extension = filename;
+
+ while (*extension != 0)
+ extension++;
+
+ while (extension > filename && *extension != '.')
+ extension--;
+
+ if (extension == filename)
+ return nullptr;
+
+ extension++;
+
+ if (*extension == 0)
+ return nullptr;
+
+ return extension;
+}
+
+int main(int argc, char **argv)
+{
+ if (argc != 3)
+ {
+ std::fprintf(stderr, "Usage: %s SRC_FILE CHARMAP_FILE", argv[0]);
+ return 1;
+ }
+
+ g_charmap = new Charmap(argv[2]);
+
+ char* extension = GetFileExtension(argv[1]);
+
+ if (!extension)
+ FATAL_ERROR("\"%s\" has no file extension.\n", argv[1]);
+
+ if ((extension[0] == 's') && extension[1] == 0)
+ PreprocAsmFile(argv[1]);
+ else if ((extension[0] == 'c' || extension[0] == 'i') && extension[1] == 0)
+ PreprocCFile(argv[1]);
+ else
+ FATAL_ERROR("\"%s\" has an unknown file extension of \"%s\".\n", argv[1], extension);
+
+ return 0;
+}