From 3c9817f94592907c8c19a8b8f97af87dad3dceaf Mon Sep 17 00:00:00 2001 From: John Denker Date: Thu, 22 Nov 2012 16:01:04 -0800 Subject: move case-insensitive string stuff to utils.h --- tools/utils.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'tools/utils.c') diff --git a/tools/utils.c b/tools/utils.c index a7c2878..6dbbff4 100644 --- a/tools/utils.c +++ b/tools/utils.c @@ -87,3 +87,31 @@ string purify(const string arg){ } return rslt; } + +// Returns negative if a is less than b in alphabetical order +// returns 0 if they are the same, or positive if a is greater. +// Like perl cmp operator, but ignores case. +int cmp_casefold(const std::string& a, const std::string& b) { + string::const_iterator aa, bb; + aa = a.begin(); + bb = b.begin(); + while (aa != a.end() && bb != b.end()){ + char ca = tolower(*aa++); + char cb = tolower(*bb++); + if (ca != cb) return ca < cb ? -2 : 2; + } + if (aa != a.end()) return 1; // a is longer + if (bb != b.end()) return -1; // b is longer + return 0; +} + +string noCR(const string bar){ + string foo(bar); + int len = foo.length(); + if (len){ + if (foo[len-1] == '\r') { + foo.erase(len-1); + } + } + return foo; +} -- cgit v1.2.3