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myvar.c File Reference

Handling of personal config ('my' variables) More...

#include "config.h"
#include <stddef.h>
#include "mutt/lib.h"
#include "myvar.h"
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Go to the source code of this file.

Functions

static struct MyVarmyvar_new (const char *name, const char *value)
 Create a new MyVar. More...
 
static void myvar_free (struct MyVar **ptr)
 Free a MyVar. More...
 
static struct MyVarmyvar_find (const char *var)
 Locate a "my_" variable. More...
 
const char * myvar_get (const char *var)
 Get the value of a "my_" variable. More...
 
void myvar_set (const char *var, const char *val)
 Set the value of a "my_" variable. More...
 
void myvar_append (const char *var, const char *val)
 Append to the value of a "my_" variable. More...
 
void myvar_del (const char *var)
 Unset the value of a "my_" variable. More...
 
void myvarlist_free (struct MyVarList *list)
 Free a List of MyVars. More...
 

Variables

struct MyVarList MyVars = TAILQ_HEAD_INITIALIZER(MyVars)
 List of all the user's custom config variables. More...
 

Detailed Description

Handling of personal config ('my' variables)

Authors
  • Richard Russon

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file myvar.c.

Function Documentation

◆ myvar_new()

static struct MyVar * myvar_new ( const char *  name,
const char *  value 
)
static

Create a new MyVar.

Parameters
nameVariable name
valueVariable value
Return values
ptrNew MyVar
Note
The name and value will be copied.

Definition at line 44 of file myvar.c.

45{
46 struct MyVar *myv = mutt_mem_calloc(1, sizeof(struct MyVar));
47 myv->name = mutt_str_dup(name);
48 myv->value = mutt_str_dup(value);
49 return myv;
50}
void * mutt_mem_calloc(size_t nmemb, size_t size)
Allocate zeroed memory on the heap.
Definition: memory.c:50
char * mutt_str_dup(const char *str)
Copy a string, safely.
Definition: string.c:250
A user-set variable.
Definition: myvar.h:32
char * name
Name of user variable.
Definition: myvar.h:33
char * value
Value of user variable.
Definition: myvar.h:34
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◆ myvar_free()

static void myvar_free ( struct MyVar **  ptr)
static

Free a MyVar.

Parameters
ptrMyVar to free

Definition at line 56 of file myvar.c.

57{
58 if (!ptr || !*ptr)
59 return;
60
61 struct MyVar *myv = *ptr;
62 FREE(&myv->name);
63 FREE(&myv->value);
64 FREE(ptr);
65}
#define FREE(x)
Definition: memory.h:43
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◆ myvar_find()

static struct MyVar * myvar_find ( const char *  var)
static

Locate a "my_" variable.

Parameters
varVariable name
Return values
ptrSuccess, variable exists
NULLError, variable doesn't exist

Definition at line 73 of file myvar.c.

74{
75 struct MyVar *myv = NULL;
76
77 TAILQ_FOREACH(myv, &MyVars, entries)
78 {
79 if (mutt_str_equal(myv->name, var))
80 return myv;
81 }
82
83 return NULL;
84}
bool mutt_str_equal(const char *a, const char *b)
Compare two strings.
Definition: string.c:807
struct MyVarList MyVars
List of all the user's custom config variables.
Definition: myvar.c:34
#define TAILQ_FOREACH(var, head, field)
Definition: queue.h:725
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◆ myvar_get()

const char * myvar_get ( const char *  var)

Get the value of a "my_" variable.

Parameters
varVariable name
Return values
ptrSuccess, value of variable
NULLError, variable doesn't exist

Definition at line 92 of file myvar.c.

93{
94 struct MyVar *myv = myvar_find(var);
95
96 if (myv)
97 {
98 return NONULL(myv->value);
99 }
100
101 return NULL;
102}
static struct MyVar * myvar_find(const char *var)
Locate a "my_" variable.
Definition: myvar.c:73
#define NONULL(x)
Definition: string2.h:37
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◆ myvar_set()

void myvar_set ( const char *  var,
const char *  val 
)

Set the value of a "my_" variable.

Parameters
varVariable name
valValue to set

Definition at line 109 of file myvar.c.

110{
111 struct MyVar *myv = myvar_find(var);
112
113 if (myv)
114 {
115 mutt_str_replace(&myv->value, val);
116 return;
117 }
118
119 myv = myvar_new(var, val);
120 TAILQ_INSERT_TAIL(&MyVars, myv, entries);
121}
char * mutt_str_replace(char **p, const char *s)
Replace one string with another.
Definition: string.c:326
static struct MyVar * myvar_new(const char *name, const char *value)
Create a new MyVar.
Definition: myvar.c:44
#define TAILQ_INSERT_TAIL(head, elm, field)
Definition: queue.h:809
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◆ myvar_append()

void myvar_append ( const char *  var,
const char *  val 
)

Append to the value of a "my_" variable.

Parameters
varVariable name
valValue to append

Definition at line 128 of file myvar.c.

129{
130 struct MyVar *myv = myvar_find(var);
131
132 if (myv)
133 {
134 mutt_str_append_item(&myv->value, val, '\0');
135 return;
136 }
137
138 myv = myvar_new(var, val);
139 TAILQ_INSERT_TAIL(&MyVars, myv, entries);
140}
void mutt_str_append_item(char **str, const char *item, char sep)
Add string to another separated by sep.
Definition: string.c:346
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◆ myvar_del()

void myvar_del ( const char *  var)

Unset the value of a "my_" variable.

Parameters
varVariable name

Definition at line 146 of file myvar.c.

147{
148 struct MyVar *myv = myvar_find(var);
149
150 if (myv)
151 {
152 TAILQ_REMOVE(&MyVars, myv, entries);
153 myvar_free(&myv);
154 }
155}
static void myvar_free(struct MyVar **ptr)
Free a MyVar.
Definition: myvar.c:56
#define TAILQ_REMOVE(head, elm, field)
Definition: queue.h:841
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◆ myvarlist_free()

void myvarlist_free ( struct MyVarList *  list)

Free a List of MyVars.

Parameters
listList of MyVars

Definition at line 161 of file myvar.c.

162{
163 if (!list)
164 return;
165
166 struct MyVar *myv = NULL;
167 struct MyVar *tmp = NULL;
168 TAILQ_FOREACH_SAFE(myv, list, entries, tmp)
169 {
170 TAILQ_REMOVE(list, myv, entries);
171 myvar_free(&myv);
172 }
173}
#define TAILQ_FOREACH_SAFE(var, head, field, tvar)
Definition: queue.h:735
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Variable Documentation

◆ MyVars

struct MyVarList MyVars = TAILQ_HEAD_INITIALIZER(MyVars)

List of all the user's custom config variables.

Definition at line 34 of file myvar.c.