snapshot of project "lynx", label v2-8-3dev_4

1 files changed, 75 insertions, 0 deletions

diff --git a/src/LYJustify.h b/src/LYJustify.h
new file mode 100644
index 00000000..fb800bc2
--- /dev/null
+++ b/src/LYJustify.h
@@ -0,0 +1,75 @@
+/* Justification for lynx - implemented by Vlad Harchev <hvv@hippo.ru>
+   11 July 1999
+*/
+
+#ifndef LYJUSTIFY_H
+#define LYJUSTIFY_H
+
+#include <HTUtils.h>
+
+#ifdef EXP_JUSTIFY_ELTS
+
+extern BOOL ok_justify;
+extern BOOL can_justify_here;
+extern BOOL can_justify_here_saved;
+
+extern BOOL can_justify_this_line;
+extern int wait_for_this_stacked_elt;
+extern BOOL form_in_htext;
+
+/*disabled by default*/
+/*#define DEBUG_JUSTIFY*/
+#ifdef DEBUG_JUSTIFY
+extern BOOL can_justify_stack_depth;/* can be 0 or 1 if all code is correct*/
+#  define CAN_JUSTIFY_STACK_INC ++can_justify_stack_depth;\
+	assert(can_justify_stack_depth < 2 && can_justify_stack_depth >=0 );
+#  define CAN_JUSTIFY_STACK_DEC --can_justify_stack_depth;\
+	assert(can_justify_stack_depth < 2 && can_justify_stack_depth >=0 );
+#else
+#  define CAN_JUSTIFY_STACK_INC /* nothing */
+#  define CAN_JUSTIFY_STACK_DEC /* nothing */
+#endif
+
+#define CAN_JUSTIFY_PUSH(x) can_justify_here_saved=can_justify_here;\
+	can_justify_here=(x); CAN_JUSTIFY_STACK_INC
+#define CAN_JUSTIFY_POP can_justify_here=can_justify_here_saved;\
+	CAN_JUSTIFY_STACK_INC
+#define CAN_JUSTIFY_SET(x) can_justify_here=(x);
+
+/*
+ * This is used to indicate that starting from the current offset in current
+ * line justification can take place (in order the gap between some prefix and
+ * the word not to be enlarged.
+ * For example, when forming OL,
+ *     1.21 foo
+ * 	   ^justification can start here so that gap between 1.21 and "foo"
+ *	   will not be enlarged.
+ * This is a macro (that uses 'me').
+ */
+#define CAN_JUSTIFY_START  mark_justify_start_position(me->text);
+#define CANT_JUSTIFY_THIS_LINE can_justify_this_line=FALSE;
+#define EMIT_IFDEF_EXP_JUSTIFY_ELTS(x) x
+    /*defined in order not to wrap single line of code  into #ifdef/#endif */
+
+extern void ht_justify_cleanup NOPARAMS;
+extern void mark_justify_start_position PARAMS((void* text));
+
+#else /* ! EXP_JUSTIFY_ELTS */
+
+/*
+ * define empty macros so that they can be used without wrapping them in
+ * #ifdef EXP_JUSTIFY_ELTS/#endif
+ */
+
+#define CAN_JUSTIFY_PUSH(x)
+#define CAN_JUSTIFY_POP
+#define CAN_JUSTIFY_SET(x)
+#define CAN_JUSTIFY_START
+#define CANT_JUSTIFY_THIS_LINE
+#define EMIT_IFDEF_EXP_JUSTIFY_ELTS(x)
+
+#endif /* EXP_JUSTIFY_ELTS */
+
+#define CAN_JUSTIFY_PUSH_F CAN_JUSTIFY_PUSH(FALSE)
+
+#endif /* LYJUSTIFY_H */