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ucm: add Repeat block - repetitive pattern substitution (Syntax 9)

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Implements Repeat blocks for generating repetitive configuration patterns
with variable substitution. This feature allows applying a configuration
block multiple times with different variable values, significantly reducing
duplication in UCM configuration files.

iterator abstraction allows easy extension for future pattern types.

Example:

  Repeat.VolumeInit {
    Pattern {
      Variable 'ch'
      Type Integer
      First 0
      Last 7
      Step 1
    }
    Apply {
      cset "name='PCM Channel ${var:ch} Volume' 100%"
    }
  }

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2026-02-06 13:43:11 +01:00
parent 2943b1e412
commit 27aa3e41ef
5 changed files with 540 additions and 3 deletions
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3
src/ucm/ucm_local.h
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@ -384,6 +384,9 @@ int uc_mgr_evaluate_condition(snd_use_case_mgr_t *uc_mgr,
snd_config_t *parent,
snd_config_t *cond);
int uc_mgr_evaluate_repeat(snd_use_case_mgr_t *uc_mgr,
snd_config_t *cfg);
int uc_mgr_define_regex(snd_use_case_mgr_t *uc_mgr,
const char *name,
snd_config_t *eval);