120 lines
4.4 KiB
C
120 lines
4.4 KiB
C
/*
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* Module for handling variables in QEmacs
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*
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* Copyright (c) 2000-2026 Charlie Gordon.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QE_VARIABLES_H
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#define QE_VARIABLES_H
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typedef enum QVarType {
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VAR_UNKNOWN = 0,
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VAR_NUMBER,
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VAR_STYLE,
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VAR_STRING,
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VAR_CHARS,
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VAR_READONLY,
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VAR_INVALID,
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} QVarType;
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enum QVarAccess {
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VAR_RO,
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VAR_RW,
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VAR_RW_SAVE,
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};
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enum QVarDomain {
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VAR_GLOBAL,
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VAR_STATE,
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VAR_BUFFER,
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VAR_WINDOW,
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VAR_MODE,
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VAR_SELF,
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};
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extern const char * const var_domain[];
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typedef struct VarDef VarDef;
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struct VarDef {
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const char *name;
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const char *desc;
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unsigned int var_alloc : 1;
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unsigned int str_alloc : 1;
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unsigned int modified : 1;
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enum QVarDomain domain : 4;
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enum QVarType type : 4;
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enum QVarAccess rw : 2;
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unsigned int size : 16;
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union {
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void *ptr;
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int offset;
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char **pstr;
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int *pint;
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char *str;
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int num;
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} value;
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QVarType (*set_value)(EditState *s, VarDef *vp, void *ptr,
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const char *str, int num);
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VarDef *next;
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};
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#define U_VAR_F(name, type, fun, desc) \
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{ (name), desc, 0, 0, 0, VAR_SELF, type, VAR_RW, 0, { .num = 0 }, fun, NULL },
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#define G_VAR_F(name, var, type, rw, fun, desc) \
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{ (name), desc, 0, 0, 0, VAR_GLOBAL, type, rw, 0, \
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{ .ptr = (void*)&(var) }, fun, NULL },
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#define S_VAR_F(name, fld, type, rw, fun, desc) \
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{ (name), desc, 0, 0, 0, VAR_STATE, type, rw, sizeof(((QEmacsState*)0)->fld), \
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{ .offset = offsetof(QEmacsState, fld) }, fun, NULL },
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#define B_VAR_F(name, fld, type, rw, fun, desc) \
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{ (name), desc, 0, 0, 0, VAR_BUFFER, type, rw, sizeof(((EditBuffer*)0)->fld), \
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{ .offset = offsetof(EditBuffer, fld) }, fun, NULL },
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#define W_VAR_F(name, fld, type, rw, fun, desc) \
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{ (name), desc, 0, 0, 0, VAR_WINDOW, type, rw, sizeof(((EditState*)0)->fld), \
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{ .offset = offsetof(EditState, fld) }, fun, NULL },
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#define M_VAR_F(name, fld, type, rw, fun, desc) \
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{ (name), desc, 0, 0, 0, VAR_MODE, type, rw, sizeof(((ModeDef*)0)->fld), \
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{ .offset = offsetof(ModeDef, fld) }, fun, NULL },
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#define U_VAR(name,type,desc) U_VAR_F(name, type, NULL, desc)
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#define G_VAR(name,var,type,rw,desc) G_VAR_F(name, var, type, rw, NULL, desc)
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#define S_VAR(name,fld,type,rw,desc) S_VAR_F(name, fld, type, rw, NULL, desc)
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#define B_VAR(name,fld,type,rw,desc) B_VAR_F(name, fld, type, rw, NULL, desc)
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#define W_VAR(name,fld,type,rw,desc) W_VAR_F(name, fld, type, rw, NULL, desc)
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#define M_VAR(name,fld,type,rw,desc) M_VAR_F(name, fld, type, rw, NULL, desc)
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void qe_register_variables(QEmacsState *qs, VarDef *vars, int count);
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void variable_complete(CompleteState *cp, CompleteFunc enumerate);
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int eb_variable_print_entry(EditBuffer *b, VarDef *vp, EditState *s, int long_format);
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int variable_print_entry(CompleteState *cp, EditState *s, const char *name);
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QVarType qe_get_variable(EditState *s, const char *name,
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char *buf, int size, int *pnum, int as_source);
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QVarType qe_set_variable(EditState *s, const char *name,
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const char *value, int num);
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void qe_list_variables(EditState *s, EditBuffer *b);
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void do_set_variable(EditState *s, const char *name, const char *value);
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void do_show_variable(EditState *s, const char *name);
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void qe_save_variables(EditState *s, EditBuffer *b);
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#endif /* QE_VARIABLES_H */
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