libsmartcols: don't link with tinfo

Let's move color names to sequence translation to separate file to
make it usable without all the stuff in lib/colors.c.

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/lib/color-names.c b/lib/color-names.c
new file mode 100644
index 000000000..923b2f039
--- /dev/null
+++ b/lib/color-names.c
@@ -0,0 +1,52 @@
+
+#include "c.h"
+#include "color-names.h"
+
+struct ul_color_name {
+	const char *name;
+	const char *seq;
+};
+
+/*
+ * qsort/bsearch buddy
+ */
+static int cmp_color_name(const void *a0, const void *b0)
+{
+	struct ul_color_name	*a = (struct ul_color_name *) a0,
+				*b = (struct ul_color_name *) b0;
+	return strcmp(a->name, b->name);
+}
+
+/*
+ * Maintains human readable color names
+ */
+const char *color_sequence_from_colorname(const char *str)
+{
+	static const struct ul_color_name basic_schemes[] = {
+		{ "black",	UL_COLOR_BLACK           },
+		{ "blue",	UL_COLOR_BLUE            },
+		{ "brown",	UL_COLOR_BROWN           },
+		{ "cyan",	UL_COLOR_CYAN            },
+		{ "darkgray",	UL_COLOR_DARK_GRAY       },
+		{ "gray",	UL_COLOR_GRAY            },
+		{ "green",	UL_COLOR_GREEN           },
+		{ "lightblue",	UL_COLOR_BOLD_BLUE       },
+		{ "lightcyan",	UL_COLOR_BOLD_CYAN       },
+		{ "lightgray,",	UL_COLOR_GRAY            },
+		{ "lightgreen", UL_COLOR_BOLD_GREEN      },
+		{ "lightmagenta", UL_COLOR_BOLD_MAGENTA  },
+		{ "lightred",	UL_COLOR_BOLD_RED        },
+		{ "magenta",	UL_COLOR_MAGENTA         },
+		{ "red",	UL_COLOR_RED             },
+		{ "yellow",	UL_COLOR_BOLD_YELLOW     },
+	};
+	struct ul_color_name key = { .name = (char *) str }, *res;
+
+	if (!str)
+		return NULL;
+
+	res = bsearch(&key, basic_schemes, ARRAY_SIZE(basic_schemes),
+				sizeof(struct ul_color_name),
+				cmp_color_name);
+	return res ? res->seq : NULL;
+}