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authorMathias Gumz <akira at fluxbox dot org>2009-10-01 19:16:46 (GMT)
committerMathias Gumz <akira at fluxbox dot org>2009-10-01 19:16:46 (GMT)
commit261ba26d27c3a64a627b6f407e057da0d17b621c (patch)
treec01a497e688192e0a2049f7181b4cbb3f93fa0da /src/FbTk
parent57b6e5a778d597aa279ac72aac38a3b178221931 (diff)
downloadfluxbox_paul-261ba26d27c3a64a627b6f407e057da0d17b621c.zip
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another little helper for FbTk::StringUtil: extractNumber()
Diffstat (limited to 'src/FbTk')
-rw-r--r--src/FbTk/StringUtil.cc46
-rw-r--r--src/FbTk/StringUtil.hh8
2 files changed, 54 insertions, 0 deletions
diff --git a/src/FbTk/StringUtil.cc b/src/FbTk/StringUtil.cc
index a0e402d..639041b 100644
--- a/src/FbTk/StringUtil.cc
+++ b/src/FbTk/StringUtil.cc
@@ -48,6 +48,11 @@
48 #include <string.h> 48 #include <string.h>
49#endif 49#endif
50 50
51#ifdef HAVE_CERRNO
52 #include <cerrno>
53#else
54 #include <errno.h>
55#endif
51 56
52#include <memory> 57#include <memory>
53#include <algorithm> 58#include <algorithm>
@@ -56,10 +61,51 @@
56using std::string; 61using std::string;
57using std::transform; 62using std::transform;
58 63
64namespace {
65
66int extractLongNumber(const char* in, long long int& out) {
67
68 errno = 0;
69
70 int ret = 0;
71 char* end = 0;
72 long long int result = strtoll(in, &end, 0);
73
74 if (errno == 0 && end != in) {
75 out = result;
76 ret = 1;
77 }
78
79 return ret;
80}
81
82template<typename T>
83int extractNumber(const std::string& in, T& out) {
84
85 long long int result = 0;
86
87 if (::extractLongNumber(in.c_str(), result) && out >= 0) {
88 out = static_cast<T>(result);
89 return 1;
90 }
91
92 return 0;
93}
94
95}
96
97
59namespace FbTk { 98namespace FbTk {
60 99
61namespace StringUtil { 100namespace StringUtil {
62 101
102int extractNumber(const std::string& in, int& out) {
103 return ::extractNumber<int>(in, out);
104}
105
106int extractNumber(const std::string& in, unsigned int& out) {
107 return ::extractNumber<unsigned int>(in, out);
108}
63 109
64std::string number2String(int num) { 110std::string number2String(int num) {
65 char s[128]; 111 char s[128];
diff --git a/src/FbTk/StringUtil.hh b/src/FbTk/StringUtil.hh
index 6493f74..7bc8f80 100644
--- a/src/FbTk/StringUtil.hh
+++ b/src/FbTk/StringUtil.hh
@@ -30,6 +30,14 @@ namespace FbTk {
30 30
31namespace StringUtil { 31namespace StringUtil {
32 32
33/// \@{
34/// @param in - input string, might be 0xab or 0123
35/// @param out - result if extraction was ok
36/// @return 1 - ok, result stored in 'out'
37int extractNumber(const std::string& in, unsigned int& out);
38int extractNumber(const std::string& in, int& out);
39/// \@}
40
33/// creates a number to a string 41/// creates a number to a string
34std::string number2String(int num); 42std::string number2String(int num);
35 43