segregated text stuff to its own set of files agian... progress on strings

code/base/text.h

@@ -0,0 +1,54 @@
+#ifdef INTELLISENSE_DIRECTIVES
+#	pragma once
+#	include "strings.h"
+#endif
+
+////////////////////////////////
+//~ rjf: Text 2D Coordinates & Ranges
+
+typedef struct TxtPt TxtPt;
+struct TxtPt
+{
+  S64 line;
+  S64 column;
+};
+
+typedef struct TxtRng TxtRng;
+struct TxtRng
+{
+  TxtPt min;
+  TxtPt max;
+};
+
+////////////////////////////////
+//~ rjf: String Pair Types
+
+typedef struct String8TxtPtPair String8TxtPtPair;
+struct String8TxtPtPair
+{
+  String8 string;
+  TxtPt   pt;
+};
+
+////////////////////////////////
+//~ rjf: Text Path Helpers
+
+MD_API String8TxtPtPair str8_txt_pt_pair_from_string(String8 string);
+
+////////////////////////////////
+//~ rjf: Text 2D Coordinate/Range Functions
+
+TxtPt  txt_pt(S64 line, S64 column);
+B32    txt_pt_match(TxtPt a, TxtPt b);
+B32    txt_pt_less_than(TxtPt a, TxtPt b);
+TxtPt  txt_pt_min(TxtPt a, TxtPt b);
+TxtPt  txt_pt_max(TxtPt a, TxtPt b);
+TxtRng txt_rng(TxtPt min, TxtPt max);
+TxtRng txt_rng_intersect(TxtRng a, TxtRng b);
+TxtRng txt_rng_union(TxtRng a, TxtRng b);
+B32    txt_rng_contains(TxtRng r, TxtPt pt);
+
+////////////////////////////////
+//~ rjf: Text Wrapping
+
+String8List wrapped_lines_from_string(Arena *arena, String8 string, U64 first_line_max_width, U64 max_width, U64 wrap_indent);