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| author | David Robillard <d@drobilla.net> | 2018-09-22 22:40:34 +0200 |
|---|---|---|
| committer | David Robillard <d@drobilla.net> | 2018-09-22 22:40:45 +0200 |
| commit | b49b6f8c22d6c66e630fbbc5bde4838df5f6af41 (patch) | |
| tree | f546ddb87d738eefaf9477c9865d1387d9833d93 /src | |
| parent | 05b70efaa888e708930fb968531a674534ef5251 (diff) | |
| download | jalv-b49b6f8c22d6c66e630fbbc5bde4838df5f6af41.tar.gz jalv-b49b6f8c22d6c66e630fbbc5bde4838df5f6af41.tar.bz2 jalv-b49b6f8c22d6c66e630fbbc5bde4838df5f6af41.zip | |
Add rudimentary help to console interface
Diffstat (limited to 'src')
| -rw-r--r-- | src/jalv_console.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/jalv_console.c b/src/jalv_console.c index 9bdf2f6..91e9f62 100644 --- a/src/jalv_console.c +++ b/src/jalv_console.c @@ -141,7 +141,14 @@ jalv_process_command(Jalv* jalv, const char* cmd) { char sym[64]; float value; - if (sscanf(cmd, "%[a-zA-Z0-9_] = %f", sym, &value) == 2) { + if (!strncmp(cmd, "help", 4)) { + fprintf(stderr, + "Commands:\n" + " help Display this help message\n" + " set SYMBOL VALUE Set control value\n" + " SYMBOL = VALUE Set control value\n"); + } else if (sscanf(cmd, "set %[a-zA-Z0-9_] %f", sym, &value) == 2 || + sscanf(cmd, "%[a-zA-Z0-9_] = %f", sym, &value) == 2) { struct Port* port = NULL; for (uint32_t i = 0; i < jalv->num_ports; ++i) { struct Port* p = &jalv->ports[i]; @@ -155,10 +162,10 @@ jalv_process_command(Jalv* jalv, const char* cmd) port->control = value; printf("%s = %f\n", sym, value); } else { - fprintf(stderr, "error: no port `%s'\n", sym); + fprintf(stderr, "error: no control named `%s'\n", sym); } } else { - fprintf(stderr, "error: invalid command\n"); + fprintf(stderr, "error: invalid command (try `help')\n"); } } |