commit 6e8d5f118991efdc040f367b208f32219457bb39
Author:     Simon Howard <fraggle@gmail.com>
AuthorDate: Sat Jul 26 15:45:52 2008 +0000
Commit:     Simon Howard <fraggle@gmail.com>
CommitDate: Sat Jul 26 15:45:52 2008 +0000

    Allow magic comments in dehacked files that disable the DOS dehacked
    text replacement limit, so that we can use a dehacked patch to emulate
    chex.exe.

    Subversion-branch: /trunk/chocolate-doom
    Subversion-revision: 1158
---
 src/deh_main.c | 25 +++++++++++++++++++++++++
 src/deh_main.h |  2 ++
 src/deh_text.c |  3 ++-
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/deh_main.c b/src/deh_main.c
index 7b08ebf4..e4ae7251 100644
--- a/src/deh_main.c
+++ b/src/deh_main.c
@@ -59,6 +59,10 @@ extern deh_section_t deh_section_thing;
 // deh_weapon.c:
 extern deh_section_t deh_section_weapon;

+// If true, we can do long string replacements.
+
+boolean deh_allow_long_strings = false;
+
 //
 // List of section types:
 //
@@ -226,6 +230,24 @@ static boolean CheckSignatures(deh_context_t *context)
     return false;
 }

+// Parses a comment string in a dehacked file.
+
+static void DEH_ParseComment(char *comment)
+{
+    // Allow comments containing this special value to allow string
+    // replacements longer than those permitted by DOS dehacked.
+    // This allows us to use a dehacked patch for doing string
+    // replacements for emulating Chex Quest.
+    //
+    // If you use this, your dehacked patch may not work in Vanilla
+    // Doom.
+
+    if (strstr(comment, "*allow-long-strings*") != NULL)
+    {
+        deh_allow_long_strings = true;
+    }
+}
+
 // Parses a dehacked file by reading from the context

 static void DEH_ParseContext(deh_context_t *context)
@@ -241,6 +263,8 @@ static void DEH_ParseContext(deh_context_t *context)
     {
         DEH_Error(context, "This is not a valid dehacked patch file!");
     }
+
+    deh_allow_long_strings = false;

     // Read the file

@@ -262,6 +286,7 @@ static void DEH_ParseContext(deh_context_t *context)
         {
             // comment

+            DEH_ParseComment(line);
             continue;
         }

diff --git a/src/deh_main.h b/src/deh_main.h
index b1460a07..de6e8296 100644
--- a/src/deh_main.h
+++ b/src/deh_main.h
@@ -58,5 +58,7 @@ char *DEH_String(char *s);

 #endif

+extern boolean deh_allow_long_strings;
+
 #endif /* #ifndef DEH_MAIN_H */

diff --git a/src/deh_text.c b/src/deh_text.c
index b4f7278e..ff5e2d70 100644
--- a/src/deh_text.c
+++ b/src/deh_text.c
@@ -31,6 +31,7 @@

 #include "deh_defs.h"
 #include "deh_io.h"
+#include "deh_main.h"

 typedef struct
 {
@@ -194,7 +195,7 @@ static void *DEH_TextStart(deh_context_t *context, char *line)
     // Only allow string replacements that are possible in Vanilla Doom.
     // Chocolate Doom is unforgiving!

-    if (tolen > TXT_MaxStringLength(fromlen))
+    if (!deh_allow_long_strings && tolen > TXT_MaxStringLength(fromlen))
     {
         DEH_Error(context, "Replacement string is longer than the maximum "
                            "possible in doom.exe");