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root/gclib/tophat_cpp/GArgs.h
Revision: 29
Committed: Tue Aug 2 21:24:54 2011 UTC (8 years, 2 months ago) by gpertea
File size: 2621 byte(s)
Log Message:
adding tophat source work

Line File contents
1 /*
2 GArgs is a quick'n'dirty object oriented replacement for the standard
3 getopts library call available on many unix platforms;
4 it accepts the regular single dash style options
5 -<letter>[ ][<value>]
6 but also attr=value style options:
7 <optname>=<value>
8 */
9
10 #ifndef G_ARGS_DEFINED
11 #define G_ARGS_DEFINED
12
13 #ifdef HAVE_CONFIG_H
14 #include <config.h>
15 #endif
16
17
18 class GArgs {
19 //structure for parsing arguments format definition
20 struct fmtdef {
21 int type; // 0=dashed switch, 1=dashed value, 2='=' value
22 char* opt; //switch/opt char/string
23 };
24 int fmtcount;
25 fmtdef* fmt; //this will store format definition after parsing it
26
27 struct argdata {
28 char* opt; // this is NULL for non-dashed arguments
29 //one character for dashed style arguments
30 //one string for = style arguments
31 char* value; // is NULL for switches (dashed flags)
32 };
33 argdata* args; //arguments table after parsing it
34 int count; //total count of elements in 'args' array
35 int nonOptCount; //count of non-dashed, non= arguments
36 int nonOptPos; //current position for nonOpt arguments iterator
37 int optPos; //current position for options iterator
38 int errarg; //argv error position after parsing
39 static const char* is_opt; // = non NULL just for getOpt easy testing
40 int validOpt(char o); //parsing helper function
41 int validOpt(char* o);
42 public:
43
44 GArgs(int argc, char* const argv[], const char* format, bool nodigitopts=false);
45 /* format is:
46 <letter>[:] for e.g. p:hT <= -p testing -ptesting -h -T
47 <string>= for e.g. PID=S= <= PID=50 S=3.5
48 This means that the = options, if present, must NEVER be given after
49 dashed (non-value) switches directly
50 */
51 ~GArgs();
52 int isError(); // returns the offending argv position or 0 if no error
53 int getCount() { return count; }
54 int getFmtCount() { return fmtcount; }
55 int getNonOptCount() { return nonOptCount; }
56 char* getOpt(const char* o); /* retrieve the value for option o
57 returns
58 NULL if option not given at all
59 !=NULL if boolean option was given
60 opt's value if value option was given
61 */
62 char* getOpt(const char o);
63 int startOpt(); //init iteration through option arguments
64 char* nextOpt(); //get next option argument
65 int startNonOpt(); //init iteration through non-option arguments
66 //returns the number of non-option arguments
67 char* nextNonOpt(); //get the next non-option argument
68
69 };
70
71 #endif