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Diffstat (limited to 'src/json-utils.h')
| -rw-r--r-- | src/json-utils.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/json-utils.h b/src/json-utils.h new file mode 100644 index 00000000..5c03256b --- /dev/null +++ b/src/json-utils.h @@ -0,0 +1,60 @@ +/* + * json-utils.h + * + * JSON writing utilities + * + * Copyright © 2021 Deutsches Elektronen-Synchrotron DESY, + * a research centre of the Helmholtz Association. + * + * Authors: + * 2021 Thomas White <taw@physics.org> + * + * This file is part of CrystFEL. + * + * CrystFEL is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * CrystFEL 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 CrystFEL. If not, see <http://www.gnu.org/licenses/>. + * + */ + +static void write_float(FILE *fh, int comma, const char *name, float val) +{ + const char *cs = comma ? "," : ""; + + if ( isnan(val) ) { + fprintf(fh, " \"%s\": null%s\n", name, cs); + } else if ( val > 0.0001 ) { + fprintf(fh, " \"%s\": %f%s\n", name, val, cs); + } else { + fprintf(fh, " \"%s\": %e%s\n", name, val, cs); + } +} + + +static void write_bool(FILE *fh, int comma, const char *name, int val) +{ + fprintf(fh, " \"%s\": %s%s\n", + name, val?"true":"false", comma?",":""); +} + + +static void write_int(FILE *fh, int comma, const char *name, int val) +{ + fprintf(fh, " \"%s\": %i%s\n", name, val, comma?",":""); +} + + +static void write_str(FILE *fh, int comma, const char *name, const char *val) +{ + fprintf(fh, " \"%s\": \"%s\"%s\n", name, val, comma?",":""); +} + |