Rationalize strong regex as param to sub/gsub. Add tests.

1 files changed, 48 insertions, 0 deletions

diff --git a/test/regexsub.awk b/test/regexsub.awk
new file mode 100644
index 00000000..92dede7b
--- /dev/null
+++ b/test/regexsub.awk
@@ -0,0 +1,48 @@
+BEGIN {
+	print "Initialize strong regex"
+	rgx2 = rgx1 = @/[abc]/
+	print "Test gsub on strong regex"
+	printf("rgx%d = '%s'\ttypeof(rgx%d) = '%s'\n", 1, rgx1, 1, typeof(rgx1))
+	printf("rgx%d = '%s'\ttypeof(rgx%d) = '%s'\n", 2, rgx2, 2, typeof(rgx2))
+	print "Test gsub() a strong regex"
+	gsub(/b/, "e", rgx2)
+	printf("rgx%d = '%s'\ttypeof(rgx%d) = '%s'\n", 1, rgx1, 1, typeof(rgx1))
+	printf("rgx%d = '%s'\ttypeof(rgx%d) = '%s'\n", 2, rgx2, 2, typeof(rgx2))
+
+	print "Test value not found in regex"
+	gsub(/x/, "y", rgx1)	# should not change
+	printf("rgx%d = '%s'\ttypeof(rgx%d) = '%s'\n", 1, rgx1, 1, typeof(rgx1))
+
+	print "Test gsub on numbers"
+	v2 = v1 = 12345
+	printf("v%d = '%s'\ttypeof(v%d) = '%s'\n", 1, v1, 1, typeof(v1))
+	printf("v%d = '%s'\ttypeof(v%d) = '%s'\n", 2, v2, 2, typeof(v2))
+	gsub(/3/, "x", v2)
+	printf("v%d = '%s'\ttypeof(v%d) = '%s'\n", 1, v1, 1, typeof(v1))
+	printf("v%d = '%s'\ttypeof(v%d) = '%s'\n", 2, v2, 2, typeof(v2))
+	print "Test value not found in number"
+	gsub(/9/, "x", v1)
+	printf("v%d = '%s'\ttypeof(v%d) = '%s'\n", 1, v1, 1, typeof(v1))
+
+	print "Test gensub on regex"
+	a = b = @/abc/
+	c = gensub(/b/, "x", "g", a)
+	printf("a = @/%s/\ttypeof(a) = '%s'\n", a, typeof(a))
+	printf("c = \"%s\"\ttypeof(c) = '%s'\n", c, typeof(c))
+	print "Test value not found in regex"
+	c = gensub(/q/, "x", "g", b)
+	printf("b = @/%s/\ttypeof(b) = '%s'\n", b, typeof(b))
+	printf("c = \"%s\"\ttypeof(c) = '%s'\n", c, typeof(c))
+
+	print "Test gensub on numbers"
+	a = b = 12345
+	c = gensub(/3/, "x", "g", a)
+	printf("a = \"%s\"\ttypeof(a) = '%s'\n", a, typeof(a))
+	printf("b = \"%s\"\ttypeof(b) = '%s'\n", b, typeof(b))
+	printf("c = \"%s\"\ttypeof(c) = '%s'\n", c, typeof(c))
+	print "Test value not found in number"
+	c = gensub(/9/, "x", "g", b)
+	printf("b = \"%s\"\ttypeof(b) = '%s'\n", b, typeof(b))
+	printf("c = \"%s\"\ttypeof(c) = '%s'\n", c, typeof(c))
+	print typeof(c), c
+}