From 6088d3f1a4541c1ac7058d85b4fddfd82f7d7c8e Mon Sep 17 00:00:00 2001
From: olli <olli@gabosh.net>
Date: Thu, 26 Oct 2023 17:00:41 +0200
Subject: [PATCH] new math functions

---
 dabo/functions/g_num_is_approx.sh  | 23 +++++++++++++
 dabo/functions/g_num_is_between.sh | 54 ++++++++++++++++++++++++++++++
 dabo/functions/g_num_is_higher.sh  | 37 ++++++++++++++++++++
 3 files changed, 114 insertions(+)
 create mode 100644 dabo/functions/g_num_is_approx.sh
 create mode 100644 dabo/functions/g_num_is_between.sh
 create mode 100644 dabo/functions/g_num_is_higher.sh

diff --git a/dabo/functions/g_num_is_approx.sh b/dabo/functions/g_num_is_approx.sh
new file mode 100644
index 0000000..7e842b7
--- /dev/null
+++ b/dabo/functions/g_num_is_approx.sh
@@ -0,0 +1,23 @@
+function g_num_is_approx {
+  
+  # check if $1 is in percentage range ($3 and $4) to $2
+  local f_num=$1
+  local f_base=$2
+  local f_percentage_up=$3
+  local f_percentage_down=$4
+
+  # Check for valid decimal number
+  for f_numtest in "${f_num}" "${f_base}" "${f_percentage_up}" "${f_percentage_down}"
+  do
+    if ! [[ ${f_numtest} =~ ^(-)?[0-9]+(\.[0-9]+)?$ ]]
+    then
+      g_echo "\"${f_numtest}\"Not a valid number"
+      return 1
+    fi
+  done
+ 
+  local f_from=$(echo "${f_base} - (${f_base} / 100 * ${f_percentage_down})" | bc -l)
+  local f_to=$(echo "${f_base} + (${f_base} / 100 * ${f_percentage_up})" | bc -l)
+
+  g_num_is_between ${f_num} ${f_from} ${f_to}
+}
diff --git a/dabo/functions/g_num_is_between.sh b/dabo/functions/g_num_is_between.sh
new file mode 100644
index 0000000..18df763
--- /dev/null
+++ b/dabo/functions/g_num_is_between.sh
@@ -0,0 +1,54 @@
+function g_num_is_between {
+
+  local f_num=$1
+  local f_between1=$2
+  local f_between2=$3
+
+  # Check for integer (can be done with bash itself)
+  if [[ ${f_num} =~ ^[0-9]+$ ]] && [[ ${f_between1} =~ ^[0-9]+$ ]] && [[ ${f_between2} =~ ^[0-9]+$ ]]
+  then
+    # Check which is the low (from) and the high (to) number
+    if [ "${f_between1}" -lt "${f_between2}" ]
+    then
+      local f_from=${f_between1}
+      local f_to=${f_between2}
+    else
+      local f_from=${f_between2}
+      local f_to=${f_between1}
+    fi
+    # Check if given number is in or out range
+    if [ ${f_num} -lt ${f_from} ] || [ ${f_num} -gt ${f_to} ]
+    then
+      return 1
+    else
+      return 0
+    fi
+  fi
+
+  # Check for valid decimal number
+  for f_numtest in "$f_num" "$f_between1" "$f_between2"
+  do
+    if ! [[ ${f_numtest} =~ ^(-)?[0-9]+(\.[0-9]+)?$ ]]
+    then
+      g_echo "\"${f_numtest}\"Not a valid number"
+      return 1
+    fi
+  done
+ 
+  # Check which is the low (from) and the high (to) number
+  if [ $(echo "${f_between1} < ${f_between2}" | bc -l) -ne 0 ]
+  then
+    local f_from=${f_between1}
+    local f_to=${f_between2}
+  else
+    local f_from=${f_between2}
+    local f_to=${f_between1}
+  fi
+  # Check if given number is in or out range
+  if [ $(echo "${f_num} < ${f_from}" | bc -l) -ne 0 ] || [ $(echo "${f_num} > ${f_to}" | bc -l) -ne 0 ] 
+  then
+    return 1
+  else
+    return 0
+  fi
+}
diff --git a/dabo/functions/g_num_is_higher.sh b/dabo/functions/g_num_is_higher.sh
new file mode 100644
index 0000000..53c4816
--- /dev/null
+++ b/dabo/functions/g_num_is_higher.sh
@@ -0,0 +1,37 @@
+function g_num_is_higher {
+
+  local f_num=$1
+  local f_checkhigher=$2
+
+  # Check for integer (can be done with bash itself)
+  if [[ ${f_num} =~ ^[0-9]+$ ]] && [[ ${f_checkhigher} =~ ^[0-9]+$ ]]
+  then
+    # Check which is the low (from) and the high (to) number
+    if [ "${f_num}" -gt "${f_checkhigher}" ]
+    then
+      return 0
+    else
+      return 1
+    fi
+  fi
+
+  # Check for valid decimal number
+  for f_numtest in "$f_num" "$f_checkhigher"
+  do
+    if ! [[ ${f_numtest} =~ ^(-)?[0-9]+(\.[0-9]+)?$ ]]
+    then
+      g_echo "\"${f_numtest}\"Not a valid number"
+      return 1
+    fi
+  done
+ 
+  # Check which is the low (from) and the high (to) number
+  # Check if given number is in or out range
+  if [ $(echo "${f_num} > ${f_checkhigher}" | bc) -ne 0 ]
+  then
+    return 0
+  else
+    return 1
+  fi
+}
+