1 | /* -*- mode: C; tab-width:8; c-basic-offset:8 -*- |
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2 | * vi:set ts=8: |
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3 | * |
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4 | * al_config.h |
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5 | * |
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6 | * Prototypes, macros and definitions related to the input and parsing of |
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7 | * config state. |
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8 | * |
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9 | */ |
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10 | #ifndef AL_CONFIG_H_ |
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11 | #define AL_CONFIG_H_ |
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12 | |
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13 | #include <AL/al.h> |
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14 | |
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15 | #include "al_rctree.h" |
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16 | #include "al_rcvar.h" |
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17 | |
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18 | /* |
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19 | * Parse the openalrc config file, if any. Returns AL_TRUE if one was found |
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20 | * and contained valid openalrc syntax, AL_FALSE otherwise. |
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21 | */ |
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22 | ALboolean _alParseConfig( void ); |
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23 | |
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24 | /* |
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25 | * Deallocate the memory reserved in the call to _alParseConfig, as well as |
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26 | * any alrc objects that have been created since that point. |
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27 | */ |
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28 | void _alDestroyConfig( void ); |
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29 | |
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30 | /* |
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31 | * If str names an existing alrc symbol, and type matches the type of that |
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32 | * symbol, *retref is populated with the value of that symbol and this call |
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33 | * returns AL_TRUE. Otherwise, AL_FALSE is returned. |
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34 | * |
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35 | * NOTE: future revisions should replace this with a call to rc_lookup. |
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36 | */ |
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37 | ALboolean _alGetGlobalScalar( const char *str, |
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38 | ALRcEnum type, |
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39 | void *retref ); |
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40 | |
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41 | /* |
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42 | * If str names an existing alrc symbol, return a pointer to the value |
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43 | * associated with that symbol. Otherwise, return NULL. |
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44 | * |
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45 | */ |
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46 | AL_rctree *_alGlobalBinding( const char *str ); |
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47 | |
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48 | /* |
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49 | * Evaluate an alrc expression (expression), returning result. |
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50 | */ |
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51 | AL_rctree *_alEvalStr( const char *expression ); |
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52 | |
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53 | /* |
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54 | * Bind a symbol, named by symname, to the evaluation of value. |
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55 | */ |
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56 | AL_rctree *_alDefine( const char *symname, AL_rctree *value ); |
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57 | |
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58 | /* |
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59 | * Create and return a cons cell, with the car section pointing to ls1 and the |
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60 | * cdr section pointing to ls2. |
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61 | */ |
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62 | AL_rctree *alrc_cons( AL_rctree *ls1, AL_rctree *ls2 ); |
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63 | |
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64 | /* |
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65 | * Return the car section of the cons cell named by ls, or NULL if ls is not a |
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66 | * cons cell. |
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67 | */ |
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68 | AL_rctree *alrc_car( AL_rctree *ls ); |
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69 | |
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70 | /* |
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71 | * Return the cdr section of the cons cell named by ls, or NULL if ls is not a |
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72 | * cons cell. |
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73 | */ |
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74 | AL_rctree *alrc_cdr( AL_rctree *ls ); |
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75 | |
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76 | /* |
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77 | * scmtrue is returned by some of the rc_ functions. It is probably advised |
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78 | * to remove it. |
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79 | */ |
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80 | extern const AL_rctree scmtrue; |
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81 | |
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82 | #endif /* AL_CONFIG_H_ */ |
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