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authorBoris Kolpackov <boris@codesynthesis.com>2024-03-19 13:24:44 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2024-03-21 06:44:06 +0200
commit3a55e033e4fc9a18ede99c4f9dd69fd30c383cf7 (patch)
tree1c35062021a261479ff5f38d95dd22cfe34fbb38 /tests
parent736b0f25003c92b3903798ce0a768230480d8f4b (diff)
Add next_word() overload that doesn't skip consecutive delimiters
In particular, this version can be used to parse lines while observing blanks.
Diffstat (limited to 'tests')
-rw-r--r--tests/next-word/buildfile6
-rw-r--r--tests/next-word/driver.cxx46
2 files changed, 52 insertions, 0 deletions
diff --git a/tests/next-word/buildfile b/tests/next-word/buildfile
new file mode 100644
index 0000000..e06cd88
--- /dev/null
+++ b/tests/next-word/buildfile
@@ -0,0 +1,6 @@
+# file : tests/next-word/buildfile
+# license : MIT; see accompanying LICENSE file
+
+import libs = libbutl%lib{butl}
+
+exe{driver}: {hxx cxx}{*} $libs
diff --git a/tests/next-word/driver.cxx b/tests/next-word/driver.cxx
new file mode 100644
index 0000000..4ebe1a5
--- /dev/null
+++ b/tests/next-word/driver.cxx
@@ -0,0 +1,46 @@
+// file : tests/next-word/driver.cxx -*- C++ -*-
+// license : MIT; see accompanying LICENSE file
+
+#include <vector>
+#include <string>
+//#include <iostream>
+
+#include <libbutl/utility.hxx>
+
+#undef NDEBUG
+#include <cassert>
+
+using namespace std;
+using namespace butl;
+
+using strings = vector<string>;
+
+static strings
+parse_lines (const string& s)
+{
+ strings r;
+ for (size_t b (0), e (0), m (0), n (s.size ());
+ next_word (s, n, b, e, m, '\n', '\r'), b != n; )
+ {
+ //cerr << "'" << string (s, b, e - b) << "'" << endl;
+ r.push_back (string (s, b, e - b));
+ }
+ return r;
+}
+
+int
+main ()
+{
+ assert ((parse_lines("") == strings {}));
+ assert ((parse_lines("a") == strings {"a"}));
+ assert ((parse_lines("\n") == strings {"", ""}));
+ assert ((parse_lines("\n\n") == strings {"", "", ""}));
+ assert ((parse_lines("\n\n\n") == strings {"", "", "", ""}));
+ assert ((parse_lines("\na") == strings {"", "a"}));
+ assert ((parse_lines("\n\na") == strings {"", "", "a"}));
+ assert ((parse_lines("a\n") == strings {"a", ""}));
+ assert ((parse_lines("a\n\n") == strings {"a", "", ""}));
+ assert ((parse_lines("a\nb") == strings {"a", "b"}));
+ assert ((parse_lines("a\n\nb") == strings {"a", "", "b"}));
+ assert ((parse_lines("\na\nb\n") == strings {"", "a", "b", ""}));
+}