--- /dev/null
+#ifndef DIVE_H
+#define DIVE_H
+
+/*
+ * Some silly typedefs to make our units very explicit.
+ *
+ * Also, the units are chosen so that values can be expressible as
+ * integers, so that we never have FP rounding issues. And they
+ * are small enough that converting to/from imperial units doesn't
+ * really matter.
+ *
+ * We also strive to make '0' a meaningless number saying "not
+ * initialized", since many values are things that may not have
+ * been reported (eg tank pressure or temperature from dive
+ * computers that don't support them). But sometimes -1 is an even
+ * more explicit way of saying "not there".
+ *
+ * Thus "millibar" for pressure, for example, or "millikelvin" for
+ * temperatures. Doing temperatures in celsius or fahrenheit would
+ * make for loss of precision when converting from one to the other,
+ * and using millikelvin is SI-like but also means that a temperature
+ * of '0' is clearly just a missing temperature or tank pressure.
+ *
+ * Also strive to use units that can not possibly be mistaken for a
+ * valid value in a "normal" system without conversion. If the max
+ * depth of a dive is '20000', you probably didn't convert from mm on
+ * output, or if the max depth gets reported as "0.2ft" it was either
+ * a really boring dive, or there was some missing input conversion,
+ * and a 60-ft dive got recorded as 60mm.
+ *
+ * Doing these as "structs containing value" means that we always
+ * have to explicitly write out those units in order to get at the
+ * actual value. So there is hopefully little fear of using a value
+ * in millikelvin as Fahrenheit by mistake.
+ *
+ * We don't actually use these all yet, so maybe they'll change, but
+ * I made a number of types as guidelines.
+ */
+typedef struct {
+ int seconds;
+} duration_t;
+
+typedef struct {
+ int mm;
+} depth_t;
+
+typedef struct {
+ int mbar;
+} pressure_t;
+
+typedef struct {
+ int mkelvin;
+} temperature_t;
+
+typedef struct {
+ int mliter;
+} volume_t;
+
+typedef struct {
+ int permille;
+} fraction_t;
+
+typedef struct {
+ int grams;
+} weight_t;
+
+typedef struct {
+ fraction_t o2;
+ fraction_t n2;
+ fraction_t he2;
+} gasmix_t;
+
+typedef struct {
+ volume_t size;
+ pressure_t pressure;
+} tank_type_t;
+
+static inline int to_feet(depth_t depth)
+{
+ return depth.mm * 0.00328084 + 0.5;
+}
+
+static inline int to_C(temperature_t temp)
+{
+ if (!temp.mkelvin)
+ return 0;
+ return (temp.mkelvin - 273150) / 1000;
+}
+
+static inline int to_PSI(pressure_t pressure)
+{
+ return pressure.mbar * 0.0145037738 + 0.5;
+}
+
+struct sample {
+ duration_t time;
+ depth_t depth;
+ temperature_t temperature;
+ pressure_t tankpressure;
+ int tankindex;
+};
+
+struct dive {
+ time_t when;
+ depth_t maxdepth, meandepth;
+ duration_t duration, surfacetime;
+ depth_t visibility;
+ temperature_t airtemp, watertemp;
+ pressure_t beginning_pressure, end_pressure;
+ int samples;
+ struct sample sample[];
+};
+
+#endif /* DIVE_H */
#include <libxml/parser.h>
#include <libxml/tree.h>
-static int verbose;
-
-/*
- * Some silly typedefs to make our units very explicit.
- *
- * Also, the units are chosen so that values can be expressible as
- * integers, so that we never have FP rounding issues. And they
- * are small enough that converting to/from imperial units doesn't
- * really matter.
- *
- * We also strive to make '0' a meaningless number saying "not
- * initialized", since many values are things that may not have
- * been reported (eg tank pressure or temperature from dive
- * computers that don't support them). But sometimes -1 is an even
- * more explicit way of saying "not there".
- *
- * Thus "millibar" for pressure, for example, or "millikelvin" for
- * temperatures. Doing temperatures in celsius or fahrenheit would
- * make for loss of precision when converting from one to the other,
- * and using millikelvin is SI-like but also means that a temperature
- * of '0' is clearly just a missing temperature or tank pressure.
- *
- * Also strive to use units that can not possibly be mistaken for a
- * valid value in a "normal" system without conversion. If the max
- * depth of a dive is '20000', you probably didn't convert from mm on
- * output, or if the max depth gets reported as "0.2ft" it was either
- * a really boring dive, or there was some missing input conversion,
- * and a 60-ft dive got recorded as 60mm.
- *
- * Doing these as "structs containing value" means that we always
- * have to explicitly write out those units in order to get at the
- * actual value. So there is hopefully little fear of using a value
- * in millikelvin as Fahrenheit by mistake.
- *
- * We don't actually use these all yet, so maybe they'll change, but
- * I made a number of types as guidelines.
- */
-typedef struct {
- int seconds;
-} duration_t;
-
-typedef struct {
- int mm;
-} depth_t;
-
-typedef struct {
- int mbar;
-} pressure_t;
-
-typedef struct {
- int mkelvin;
-} temperature_t;
-
-typedef struct {
- int mliter;
-} volume_t;
-
-typedef struct {
- int permille;
-} fraction_t;
-
-typedef struct {
- int grams;
-} weight_t;
-
-typedef struct {
- fraction_t o2;
- fraction_t n2;
- fraction_t he2;
-} gasmix_t;
-
-typedef struct {
- volume_t size;
- pressure_t pressure;
-} tank_type_t;
-
-static int to_feet(depth_t depth)
-{
- return depth.mm * 0.00328084 + 0.5;
-}
+#include "dive.h"
-static int to_C(temperature_t temp)
-{
- if (!temp.mkelvin)
- return 0;
- return (temp.mkelvin - 273150) / 1000;
-}
-
-static int to_PSI(pressure_t pressure)
-{
- return pressure.mbar * 0.0145037738 + 0.5;
-}
-
-struct sample {
- duration_t time;
- depth_t depth;
- temperature_t temperature;
- pressure_t tankpressure;
- int tankindex;
-};
-
-struct dive {
- time_t when;
- depth_t maxdepth, meandepth;
- duration_t duration, surfacetime;
- depth_t visibility;
- temperature_t airtemp, watertemp;
- pressure_t beginning_pressure, end_pressure;
- int samples;
- struct sample sample[];
-};
+static int verbose;
static struct dive **dive_table;
static int nr_dives, nr_allocated;
}
}
-static void parse(const char *filename)
+static void parse_xml_file(const char *filename)
{
xmlDoc *doc;
parse_argument(a);
continue;
}
- parse(a);
+ parse_xml_file(a);
}
report_dives();
return 0;